diff --git a/ruoyi-fastapi-backend/common/mixin.py b/ruoyi-fastapi-backend/common/mixin.py
new file mode 100644
index 000000000..1a3120e24
--- /dev/null
+++ b/ruoyi-fastapi-backend/common/mixin.py
@@ -0,0 +1,48 @@
+from datetime import datetime
+
+from sqlalchemy import Column, DateTime
+from sqlalchemy.orm import Mapped, declared_attr
+
+
+class CreateTimeMixin:
+    """
+    创建时间字段Mixin
+    """
+
+    __create_time_nullable__ = True
+    __create_time_comment__ = '创建时间'
+
+    @declared_attr
+    def create_time(cls) -> Mapped[datetime]:  # noqa: N805
+        return Column(
+            DateTime,
+            nullable=cls.__create_time_nullable__,
+            default=datetime.now,
+            comment=cls.__create_time_comment__,
+        )
+
+
+class UpdateTimeMixin:
+    """
+    更新时间字段Mixin
+    """
+
+    __update_time_nullable__ = True
+    __update_time_insert_default__ = True
+    __update_time_comment__ = '更新时间'
+
+    @declared_attr
+    def update_time(cls) -> Mapped[datetime]:  # noqa: N805
+        return Column(
+            DateTime,
+            nullable=cls.__update_time_nullable__,
+            default=datetime.now if cls.__update_time_insert_default__ else None,
+            onupdate=datetime.now,
+            comment=cls.__update_time_comment__,
+        )
+
+
+class AuditTimeMixin(CreateTimeMixin, UpdateTimeMixin):
+    """
+    创建时间和更新时间字段Mixin
+    """
diff --git a/ruoyi-fastapi-backend/module_admin/controller/config_controller.py b/ruoyi-fastapi-backend/module_admin/controller/config_controller.py
index 29eb73f64..bd4eb0316 100644
--- a/ruoyi-fastapi-backend/module_admin/controller/config_controller.py
+++ b/ruoyi-fastapi-backend/module_admin/controller/config_controller.py
@@ -1,4 +1,3 @@
-from datetime import datetime
 from typing import Annotated
 
 from fastapi import Form, Path, Query, Request, Response
@@ -65,9 +64,7 @@ async def add_system_config(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     add_config.create_by = current_user.user.user_name
-    add_config.create_time = datetime.now()
     add_config.update_by = current_user.user.user_name
-    add_config.update_time = datetime.now()
     add_config_result = await ConfigService.add_config_services(request, query_db, add_config)
     logger.info(add_config_result.message)
 
@@ -91,7 +88,6 @@ async def edit_system_config(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     edit_config.update_by = current_user.user.user_name
-    edit_config.update_time = datetime.now()
     edit_config_result = await ConfigService.edit_config_services(request, query_db, edit_config)
     logger.info(edit_config_result.message)
 
diff --git a/ruoyi-fastapi-backend/module_admin/controller/dept_controller.py b/ruoyi-fastapi-backend/module_admin/controller/dept_controller.py
index 6f00b9a8f..bfb55f0b4 100644
--- a/ruoyi-fastapi-backend/module_admin/controller/dept_controller.py
+++ b/ruoyi-fastapi-backend/module_admin/controller/dept_controller.py
@@ -1,4 +1,3 @@
-from datetime import datetime
 from typing import Annotated
 
 from fastapi import Path, Query, Request, Response
@@ -86,9 +85,7 @@ async def add_system_dept(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     add_dept.create_by = current_user.user.user_name
-    add_dept.create_time = datetime.now()
     add_dept.update_by = current_user.user.user_name
-    add_dept.update_time = datetime.now()
     add_dept_result = await DeptService.add_dept_services(query_db, add_dept)
     logger.info(add_dept_result.message)
 
@@ -115,7 +112,6 @@ async def edit_system_dept(
     if not current_user.user.admin:
         await DeptService.check_dept_data_scope_services(query_db, edit_dept.dept_id, data_scope_sql)
     edit_dept.update_by = current_user.user.user_name
-    edit_dept.update_time = datetime.now()
     edit_dept_result = await DeptService.edit_dept_services(query_db, edit_dept)
     logger.info(edit_dept_result.message)
 
@@ -171,7 +167,6 @@ async def delete_system_dept(
                 await DeptService.check_dept_data_scope_services(query_db, int(dept_id), data_scope_sql)
     delete_dept = DeleteDeptModel(deptIds=dept_ids)
     delete_dept.update_by = current_user.user.user_name
-    delete_dept.update_time = datetime.now()
     delete_dept_result = await DeptService.delete_dept_services(query_db, delete_dept)
     logger.info(delete_dept_result.message)
 
diff --git a/ruoyi-fastapi-backend/module_admin/controller/dict_controller.py b/ruoyi-fastapi-backend/module_admin/controller/dict_controller.py
index 66d04fcf3..aa097e34e 100644
--- a/ruoyi-fastapi-backend/module_admin/controller/dict_controller.py
+++ b/ruoyi-fastapi-backend/module_admin/controller/dict_controller.py
@@ -1,4 +1,3 @@
-from datetime import datetime
 from typing import Annotated
 
 from fastapi import Form, Path, Query, Request, Response
@@ -74,9 +73,7 @@ async def add_system_dict_type(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     add_dict_type.create_by = current_user.user.user_name
-    add_dict_type.create_time = datetime.now()
     add_dict_type.update_by = current_user.user.user_name
-    add_dict_type.update_time = datetime.now()
     add_dict_type_result = await DictTypeService.add_dict_type_services(request, query_db, add_dict_type)
     logger.info(add_dict_type_result.message)
 
@@ -100,7 +97,6 @@ async def edit_system_dict_type(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     edit_dict_type.update_by = current_user.user.user_name
-    edit_dict_type.update_time = datetime.now()
     edit_dict_type_result = await DictTypeService.edit_dict_type_services(request, query_db, edit_dict_type)
     logger.info(edit_dict_type_result.message)
 
@@ -272,9 +268,7 @@ async def add_system_dict_data(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     add_dict_data.create_by = current_user.user.user_name
-    add_dict_data.create_time = datetime.now()
     add_dict_data.update_by = current_user.user.user_name
-    add_dict_data.update_time = datetime.now()
     add_dict_data_result = await DictDataService.add_dict_data_services(request, query_db, add_dict_data)
     logger.info(add_dict_data_result.message)
 
@@ -298,7 +292,6 @@ async def edit_system_dict_data(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     edit_dict_data.update_by = current_user.user.user_name
-    edit_dict_data.update_time = datetime.now()
     edit_dict_data_result = await DictDataService.edit_dict_data_services(request, query_db, edit_dict_data)
     logger.info(edit_dict_data_result.message)
 
diff --git a/ruoyi-fastapi-backend/module_admin/controller/job_controller.py b/ruoyi-fastapi-backend/module_admin/controller/job_controller.py
index 67d60b82f..80d46c3c4 100644
--- a/ruoyi-fastapi-backend/module_admin/controller/job_controller.py
+++ b/ruoyi-fastapi-backend/module_admin/controller/job_controller.py
@@ -1,4 +1,3 @@
-from datetime import datetime
 from typing import Annotated
 
 from fastapi import Form, Path, Query, Request, Response
@@ -74,9 +73,7 @@ async def add_system_job(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     add_job.create_by = current_user.user.user_name
-    add_job.create_time = datetime.now()
     add_job.update_by = current_user.user.user_name
-    add_job.update_time = datetime.now()
     add_job_result = await JobService.add_job_services(query_db, add_job)
     logger.info(add_job_result.message)
 
@@ -100,7 +97,6 @@ async def edit_system_job(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     edit_job.update_by = current_user.user.user_name
-    edit_job.update_time = datetime.now()
     edit_job_result = await JobService.edit_job_services(query_db, edit_job)
     logger.info(edit_job_result.message)
 
@@ -126,7 +122,6 @@ async def change_system_job_status(
         jobId=change_job.job_id,
         status=change_job.status,
         updateBy=current_user.user.user_name,
-        updateTime=datetime.now(),
         type='status',
     )
     edit_job_result = await JobService.edit_job_services(query_db, edit_job)
diff --git a/ruoyi-fastapi-backend/module_admin/controller/menu_controller.py b/ruoyi-fastapi-backend/module_admin/controller/menu_controller.py
index a8fb8c7cc..23e3ca047 100644
--- a/ruoyi-fastapi-backend/module_admin/controller/menu_controller.py
+++ b/ruoyi-fastapi-backend/module_admin/controller/menu_controller.py
@@ -1,4 +1,3 @@
-from datetime import datetime
 from typing import Annotated
 
 from fastapi import Path, Query, Request, Response
@@ -100,9 +99,7 @@ async def add_system_menu(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     add_menu.create_by = current_user.user.user_name
-    add_menu.create_time = datetime.now()
     add_menu.update_by = current_user.user.user_name
-    add_menu.update_time = datetime.now()
     add_menu_result = await MenuService.add_menu_services(query_db, add_menu)
     logger.info(add_menu_result.message)
 
@@ -126,7 +123,6 @@ async def edit_system_menu(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     edit_menu.update_by = current_user.user.user_name
-    edit_menu.update_time = datetime.now()
     edit_menu_result = await MenuService.edit_menu_services(query_db, edit_menu)
     logger.info(edit_menu_result.message)
 
diff --git a/ruoyi-fastapi-backend/module_admin/controller/notice_controller.py b/ruoyi-fastapi-backend/module_admin/controller/notice_controller.py
index 667421f90..69c18c19a 100644
--- a/ruoyi-fastapi-backend/module_admin/controller/notice_controller.py
+++ b/ruoyi-fastapi-backend/module_admin/controller/notice_controller.py
@@ -1,4 +1,3 @@
-from datetime import datetime
 from typing import Annotated
 
 from fastapi import Path, Query, Request, Response
@@ -143,9 +142,7 @@ async def add_system_notice(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     add_notice.create_by = current_user.user.user_name
-    add_notice.create_time = datetime.now()
     add_notice.update_by = current_user.user.user_name
-    add_notice.update_time = datetime.now()
     add_notice_result = await NoticeService.add_notice_services(query_db, add_notice)
     logger.info(add_notice_result.message)
 
@@ -169,7 +166,6 @@ async def edit_system_notice(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     edit_notice.update_by = current_user.user.user_name
-    edit_notice.update_time = datetime.now()
     edit_notice_result = await NoticeService.edit_notice_services(query_db, edit_notice)
     logger.info(edit_notice_result.message)
 
diff --git a/ruoyi-fastapi-backend/module_admin/controller/post_controller.py b/ruoyi-fastapi-backend/module_admin/controller/post_controller.py
index 30d78b43d..5195b9246 100644
--- a/ruoyi-fastapi-backend/module_admin/controller/post_controller.py
+++ b/ruoyi-fastapi-backend/module_admin/controller/post_controller.py
@@ -1,4 +1,3 @@
-from datetime import datetime
 from typing import Annotated
 
 from fastapi import Form, Path, Query, Request, Response
@@ -65,9 +64,7 @@ async def add_system_post(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     add_post.create_by = current_user.user.user_name
-    add_post.create_time = datetime.now()
     add_post.update_by = current_user.user.user_name
-    add_post.update_time = datetime.now()
     add_post_result = await PostService.add_post_services(query_db, add_post)
     logger.info(add_post_result.message)
 
@@ -91,7 +88,6 @@ async def edit_system_post(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     edit_post.update_by = current_user.user.user_name
-    edit_post.update_time = datetime.now()
     edit_post_result = await PostService.edit_post_services(query_db, edit_post)
     logger.info(edit_post_result.message)
 
diff --git a/ruoyi-fastapi-backend/module_admin/controller/role_controller.py b/ruoyi-fastapi-backend/module_admin/controller/role_controller.py
index 120aab4d5..c902e4aad 100644
--- a/ruoyi-fastapi-backend/module_admin/controller/role_controller.py
+++ b/ruoyi-fastapi-backend/module_admin/controller/role_controller.py
@@ -1,4 +1,3 @@
-from datetime import datetime
 from typing import Annotated
 
 from fastapi import Form, Path, Query, Request, Response
@@ -102,9 +101,7 @@ async def add_system_role(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     add_role.create_by = current_user.user.user_name
-    add_role.create_time = datetime.now()
     add_role.update_by = current_user.user.user_name
-    add_role.update_time = datetime.now()
     add_role_result = await RoleService.add_role_services(query_db, add_role)
     logger.info(add_role_result.message)
 
@@ -132,7 +129,6 @@ async def edit_system_role(
     if not current_user.user.admin:
         await RoleService.check_role_data_scope_services(query_db, str(edit_role.role_id), data_scope_sql)
     edit_role.update_by = current_user.user.user_name
-    edit_role.update_time = datetime.now()
     edit_role_result = await RoleService.edit_role_services(query_db, edit_role)
     logger.info(edit_role_result.message)
 
@@ -164,7 +160,6 @@ async def edit_system_role_datascope(
         deptIds=role_data_scope.dept_ids,
         deptCheckStrictly=role_data_scope.dept_check_strictly,
         updateBy=current_user.user.user_name,
-        updateTime=datetime.now(),
     )
     role_data_scope_result = await RoleService.role_datascope_services(query_db, edit_role)
     logger.info(role_data_scope_result.message)
@@ -194,7 +189,7 @@ async def delete_system_role(
             await RoleService.check_role_allowed_services(RoleModel(roleId=int(role_id)))
             if not current_user.user.admin:
                 await RoleService.check_role_data_scope_services(query_db, role_id, data_scope_sql)
-    delete_role = DeleteRoleModel(roleIds=role_ids, updateBy=current_user.user.user_name, updateTime=datetime.now())
+    delete_role = DeleteRoleModel(roleIds=role_ids, updateBy=current_user.user.user_name)
     delete_role_result = await RoleService.delete_role_services(query_db, delete_role)
     logger.info(delete_role_result.message)
 
@@ -280,7 +275,6 @@ async def reset_system_role_status(
         roleId=change_role.role_id,
         status=change_role.status,
         updateBy=current_user.user.user_name,
-        updateTime=datetime.now(),
         type='status',
     )
     edit_role_result = await RoleService.edit_role_services(query_db, edit_role)
diff --git a/ruoyi-fastapi-backend/module_admin/controller/user_controller.py b/ruoyi-fastapi-backend/module_admin/controller/user_controller.py
index 068ce9f24..7c3de7c36 100644
--- a/ruoyi-fastapi-backend/module_admin/controller/user_controller.py
+++ b/ruoyi-fastapi-backend/module_admin/controller/user_controller.py
@@ -124,9 +124,7 @@ async def add_system_user(
     await UserService.validate_password_services(request.app.state.redis, add_user.password)
     add_user.password = PwdUtil.get_password_hash(add_user.password)
     add_user.create_by = current_user.user.user_name
-    add_user.create_time = datetime.now()
     add_user.update_by = current_user.user.user_name
-    add_user.update_time = datetime.now()
     add_user_result = await UserService.add_user_services(query_db, add_user)
     logger.info(add_user_result.message)
 
@@ -160,7 +158,6 @@ async def edit_system_user(
             query_db, ','.join([str(item) for item in edit_user.role_ids]), role_data_scope_sql
         )
     edit_user.update_by = current_user.user.user_name
-    edit_user.update_time = datetime.now()
     edit_user_result = await UserService.edit_user_services(query_db, edit_user)
     logger.info(edit_user_result.message)
 
@@ -193,7 +190,7 @@ async def delete_system_user(
             await UserService.check_user_allowed_services(UserModel(userId=int(user_id)))
             if not current_user.user.admin:
                 await UserService.check_user_data_scope_services(query_db, int(user_id), data_scope_sql)
-    delete_user = DeleteUserModel(userIds=user_ids, updateBy=current_user.user.user_name, updateTime=datetime.now())
+    delete_user = DeleteUserModel(userIds=user_ids, updateBy=current_user.user.user_name)
     delete_user_result = await UserService.delete_user_services(query_db, delete_user)
     logger.info(delete_user_result.message)
 
@@ -227,7 +224,6 @@ async def reset_system_user_pwd(
         password=PwdUtil.get_password_hash(reset_user.password),
         pwdUpdateDate=datetime.now(),
         updateBy=current_user.user.user_name,
-        updateTime=datetime.now(),
         type='pwd',
     )
     edit_user_result = await UserService.edit_user_services(query_db, edit_user)
@@ -259,7 +255,6 @@ async def change_system_user_status(
         userId=change_user.user_id,
         status=change_user.status,
         updateBy=current_user.user.user_name,
-        updateTime=datetime.now(),
         type='status',
     )
     edit_user_result = await UserService.edit_user_services(query_db, edit_user)
@@ -348,7 +343,6 @@ async def change_system_user_profile_avatar(
             userId=current_user.user.user_id,
             avatar=f'{UploadConfig.UPLOAD_PREFIX}/{relative_path}/{avatar_name}',
             updateBy=current_user.user.user_name,
-            updateTime=datetime.now(),
             type='avatar',
         )
         edit_user_result = await UserService.edit_user_services(query_db, edit_user)
@@ -381,7 +375,6 @@ async def change_system_user_profile_info(
         userId=current_user.user.user_id,
         userName=current_user.user.user_name,
         updateBy=current_user.user.user_name,
-        updateTime=datetime.now(),
         roleIds=current_user.user.role_ids.split(',') if current_user.user.role_ids else [],
         postIds=current_user.user.post_ids.split(',') if current_user.user.post_ids else [],
         role=current_user.user.role,
@@ -412,7 +405,6 @@ async def reset_system_user_password(
         password=reset_password.new_password,
         pwdUpdateDate=datetime.now(),
         updateBy=current_user.user.user_name,
-        updateTime=datetime.now(),
     )
     await UserService.validate_password_services(request.app.state.redis, reset_user.password)
     reset_user_result = await UserService.reset_user_services(query_db, reset_user)
diff --git a/ruoyi-fastapi-backend/module_admin/dao/config_dao.py b/ruoyi-fastapi-backend/module_admin/dao/config_dao.py
index d130d58a8..f3396cf8f 100644
--- a/ruoyi-fastapi-backend/module_admin/dao/config_dao.py
+++ b/ruoyi-fastapi-backend/module_admin/dao/config_dao.py
@@ -95,7 +95,7 @@ async def add_config_dao(cls, db: AsyncSession, config: ConfigModel) -> SysConfi
         :param config: 参数配置对象
         :return:
         """
-        db_config = SysConfig(**config.model_dump())
+        db_config = SysConfig(**config.model_dump(exclude={'create_time', 'update_time'}))
         db.add(db_config)
         await db.flush()
 
@@ -110,7 +110,10 @@ async def edit_config_dao(cls, db: AsyncSession, config: dict) -> None:
         :param config: 需要更新的参数配置字典
         :return:
         """
-        await db.execute(update(SysConfig), [config])
+        await db.execute(
+            update(SysConfig),
+            [{key: value for key, value in config.items() if key not in {'create_time', 'update_time'}}],
+        )
 
     @classmethod
     async def delete_config_dao(cls, db: AsyncSession, config: ConfigModel) -> None:
diff --git a/ruoyi-fastapi-backend/module_admin/dao/dept_dao.py b/ruoyi-fastapi-backend/module_admin/dao/dept_dao.py
index acea7725c..b70695107 100644
--- a/ruoyi-fastapi-backend/module_admin/dao/dept_dao.py
+++ b/ruoyi-fastapi-backend/module_admin/dao/dept_dao.py
@@ -193,7 +193,7 @@ async def add_dept_dao(cls, db: AsyncSession, dept: DeptModel) -> SysDept:
         :param dept: 部门对象
         :return: 新增校验结果
         """
-        db_dept = SysDept(**dept.model_dump())
+        db_dept = SysDept(**dept.model_dump(exclude={'create_time', 'update_time'}))
         db.add(db_dept)
         await db.flush()
 
@@ -208,7 +208,10 @@ async def edit_dept_dao(cls, db: AsyncSession, dept: dict) -> None:
         :param dept: 需要更新的部门字典
         :return: 编辑校验结果
         """
-        await db.execute(update(SysDept), [dept])
+        await db.execute(
+            update(SysDept),
+            [{key: value for key, value in dept.items() if key not in {'create_time', 'update_time'}}],
+        )
 
     @classmethod
     async def update_dept_children_dao(cls, db: AsyncSession, update_dept: list) -> None:
@@ -269,9 +272,7 @@ async def delete_dept_dao(cls, db: AsyncSession, dept: DeptModel) -> None:
         :return:
         """
         await db.execute(
-            update(SysDept)
-            .where(SysDept.dept_id == dept.dept_id)
-            .values(del_flag='2', update_by=dept.update_by, update_time=dept.update_time)
+            update(SysDept).where(SysDept.dept_id == dept.dept_id).values(del_flag='2', update_by=dept.update_by)
         )
 
     @classmethod
diff --git a/ruoyi-fastapi-backend/module_admin/dao/dict_dao.py b/ruoyi-fastapi-backend/module_admin/dao/dict_dao.py
index e7b5530df..adb89c447 100644
--- a/ruoyi-fastapi-backend/module_admin/dao/dict_dao.py
+++ b/ruoyi-fastapi-backend/module_admin/dao/dict_dao.py
@@ -109,7 +109,7 @@ async def add_dict_type_dao(cls, db: AsyncSession, dict_type: DictTypeModel) ->
         :param dict_type: 字典类型对象
         :return:
         """
-        db_dict_type = SysDictType(**dict_type.model_dump())
+        db_dict_type = SysDictType(**dict_type.model_dump(exclude={'create_time', 'update_time'}))
         db.add(db_dict_type)
         await db.flush()
 
@@ -124,7 +124,10 @@ async def edit_dict_type_dao(cls, db: AsyncSession, dict_type: dict) -> None:
         :param dict_type: 需要更新的字典类型字典
         :return:
         """
-        await db.execute(update(SysDictType), [dict_type])
+        await db.execute(
+            update(SysDictType),
+            [{key: value for key, value in dict_type.items() if key not in {'create_time', 'update_time'}}],
+        )
 
     @classmethod
     async def delete_dict_type_dao(cls, db: AsyncSession, dict_type: DictTypeModel) -> None:
@@ -250,7 +253,7 @@ async def add_dict_data_dao(cls, db: AsyncSession, dict_data: DictDataModel) ->
         :param dict_data: 字典数据对象
         :return:
         """
-        db_data_type = SysDictData(**dict_data.model_dump())
+        db_data_type = SysDictData(**dict_data.model_dump(exclude={'create_time', 'update_time'}))
         db.add(db_data_type)
         await db.flush()
 
@@ -265,7 +268,10 @@ async def edit_dict_data_dao(cls, db: AsyncSession, dict_data: dict) -> None:
         :param dict_data: 需要更新的字典数据字典
         :return:
         """
-        await db.execute(update(SysDictData), [dict_data])
+        await db.execute(
+            update(SysDictData),
+            [{key: value for key, value in dict_data.items() if key not in {'create_time', 'update_time'}}],
+        )
 
     @classmethod
     async def delete_dict_data_dao(cls, db: AsyncSession, dict_data: DictDataModel) -> None:
diff --git a/ruoyi-fastapi-backend/module_admin/dao/file_business_dao.py b/ruoyi-fastapi-backend/module_admin/dao/file_business_dao.py
index 188e09598..d84eae945 100644
--- a/ruoyi-fastapi-backend/module_admin/dao/file_business_dao.py
+++ b/ruoyi-fastapi-backend/module_admin/dao/file_business_dao.py
@@ -309,7 +309,9 @@ async def edit_file_retention_policy(
         :return: None
         """
         await db.execute(
-            update(SysFileRetentionPolicy).where(SysFileRetentionPolicy.business_type == business_type).values(**policy)
+            update(SysFileRetentionPolicy)
+            .where(SysFileRetentionPolicy.business_type == business_type)
+            .values(**{key: value for key, value in policy.items() if key not in {'create_time', 'update_time'}})
         )
 
     @classmethod
diff --git a/ruoyi-fastapi-backend/module_admin/dao/job_dao.py b/ruoyi-fastapi-backend/module_admin/dao/job_dao.py
index 52df8e372..71b04ea2e 100644
--- a/ruoyi-fastapi-backend/module_admin/dao/job_dao.py
+++ b/ruoyi-fastapi-backend/module_admin/dao/job_dao.py
@@ -118,7 +118,7 @@ async def add_job_dao(cls, db: AsyncSession, job: JobModel) -> SysJob:
         :param job: 定时任务对象
         :return:
         """
-        db_job = SysJob(**job.model_dump())
+        db_job = SysJob(**job.model_dump(exclude={'create_time', 'update_time'}))
         db.add(db_job)
         await db.flush()
 
@@ -141,7 +141,7 @@ async def edit_job_dao(cls, db: AsyncSession, job: dict, old_job: JobModel) -> N
                 SysJob.job_name == old_job.job_name,
                 SysJob.job_group == old_job.job_group,
             )
-            .values(**job)
+            .values(**{key: value for key, value in job.items() if key not in {'create_time', 'update_time'}})
         )
 
     @classmethod
diff --git a/ruoyi-fastapi-backend/module_admin/dao/menu_dao.py b/ruoyi-fastapi-backend/module_admin/dao/menu_dao.py
index d9190eabe..b357bcc46 100644
--- a/ruoyi-fastapi-backend/module_admin/dao/menu_dao.py
+++ b/ruoyi-fastapi-backend/module_admin/dao/menu_dao.py
@@ -199,7 +199,7 @@ async def add_menu_dao(cls, db: AsyncSession, menu: MenuModel) -> SysMenu:
         :param menu: 菜单对象
         :return:
         """
-        db_menu = SysMenu(**menu.model_dump())
+        db_menu = SysMenu(**menu.model_dump(exclude={'create_time', 'update_time'}))
         db.add(db_menu)
         await db.flush()
 
@@ -214,7 +214,10 @@ async def edit_menu_dao(cls, db: AsyncSession, menu: dict) -> None:
         :param menu: 需要更新的菜单字典
         :return:
         """
-        await db.execute(update(SysMenu), [menu])
+        await db.execute(
+            update(SysMenu),
+            [{key: value for key, value in menu.items() if key not in {'create_time', 'update_time'}}],
+        )
 
     @classmethod
     async def update_menu_sort_dao(cls, db: AsyncSession, menu_sort_list: list[dict[str, int]]) -> None:
diff --git a/ruoyi-fastapi-backend/module_admin/dao/notice_dao.py b/ruoyi-fastapi-backend/module_admin/dao/notice_dao.py
index 74c259886..180cd4ce7 100644
--- a/ruoyi-fastapi-backend/module_admin/dao/notice_dao.py
+++ b/ruoyi-fastapi-backend/module_admin/dao/notice_dao.py
@@ -257,7 +257,7 @@ async def add_notice_dao(cls, db: AsyncSession, notice: NoticeModel) -> SysNotic
         :param notice: 通知公告对象
         :return:
         """
-        db_notice = SysNotice(**notice.model_dump())
+        db_notice = SysNotice(**notice.model_dump(exclude={'create_time', 'update_time'}))
         db.add(db_notice)
         await db.flush()
 
@@ -272,7 +272,10 @@ async def edit_notice_dao(cls, db: AsyncSession, notice: dict) -> None:
         :param notice: 需要更新的通知公告字典
         :return:
         """
-        await db.execute(update(SysNotice), [notice])
+        await db.execute(
+            update(SysNotice),
+            [{key: value for key, value in notice.items() if key not in {'create_time', 'update_time'}}],
+        )
 
     @classmethod
     async def delete_notice_dao(cls, db: AsyncSession, notice: NoticeModel) -> None:
diff --git a/ruoyi-fastapi-backend/module_admin/dao/post_dao.py b/ruoyi-fastapi-backend/module_admin/dao/post_dao.py
index da671239f..644ab21ec 100644
--- a/ruoyi-fastapi-backend/module_admin/dao/post_dao.py
+++ b/ruoyi-fastapi-backend/module_admin/dao/post_dao.py
@@ -107,7 +107,7 @@ async def add_post_dao(cls, db: AsyncSession, post: PostModel) -> SysPost:
         :param post: 岗位对象
         :return:
         """
-        db_post = SysPost(**post.model_dump())
+        db_post = SysPost(**post.model_dump(exclude={'create_time', 'update_time'}))
         db.add(db_post)
         await db.flush()
 
@@ -122,7 +122,10 @@ async def edit_post_dao(cls, db: AsyncSession, post: dict) -> None:
         :param post: 需要更新的岗位字典
         :return:
         """
-        await db.execute(update(SysPost), [post])
+        await db.execute(
+            update(SysPost),
+            [{key: value for key, value in post.items() if key not in {'create_time', 'update_time'}}],
+        )
 
     @classmethod
     async def delete_post_dao(cls, db: AsyncSession, post: PostModel) -> None:
diff --git a/ruoyi-fastapi-backend/module_admin/dao/role_dao.py b/ruoyi-fastapi-backend/module_admin/dao/role_dao.py
index c4e295fc7..3df42b181 100644
--- a/ruoyi-fastapi-backend/module_admin/dao/role_dao.py
+++ b/ruoyi-fastapi-backend/module_admin/dao/role_dao.py
@@ -179,7 +179,7 @@ async def add_role_dao(cls, db: AsyncSession, role: RoleModel) -> SysRole:
         :param role: 角色对象
         :return:
         """
-        db_role = SysRole(**role.model_dump(exclude={'admin'}))
+        db_role = SysRole(**role.model_dump(exclude={'admin', 'create_time', 'update_time'}))
         db.add(db_role)
         await db.flush()
 
@@ -194,7 +194,10 @@ async def edit_role_dao(cls, db: AsyncSession, role: dict) -> None:
         :param role: 需要更新的角色字典
         :return:
         """
-        await db.execute(update(SysRole), [role])
+        await db.execute(
+            update(SysRole),
+            [{key: value for key, value in role.items() if key not in {'create_time', 'update_time'}}],
+        )
 
     @classmethod
     async def delete_role_dao(cls, db: AsyncSession, role: RoleModel) -> None:
@@ -206,9 +209,7 @@ async def delete_role_dao(cls, db: AsyncSession, role: RoleModel) -> None:
         :return:
         """
         await db.execute(
-            update(SysRole)
-            .where(SysRole.role_id == role.role_id)
-            .values(del_flag='2', update_by=role.update_by, update_time=role.update_time)
+            update(SysRole).where(SysRole.role_id == role.role_id).values(del_flag='2', update_by=role.update_by)
         )
 
     @classmethod
diff --git a/ruoyi-fastapi-backend/module_admin/dao/user_dao.py b/ruoyi-fastapi-backend/module_admin/dao/user_dao.py
index 71b7c4bf2..1a1f8f24d 100644
--- a/ruoyi-fastapi-backend/module_admin/dao/user_dao.py
+++ b/ruoyi-fastapi-backend/module_admin/dao/user_dao.py
@@ -341,7 +341,7 @@ async def add_user_dao(cls, db: AsyncSession, user: UserModel) -> SysUser:
         :param user: 用户对象
         :return: 新增校验结果
         """
-        db_user = SysUser(**user.model_dump(exclude={'admin'}))
+        db_user = SysUser(**user.model_dump(exclude={'admin', 'create_time', 'update_time'}))
         db.add(db_user)
         await db.flush()
 
@@ -356,7 +356,10 @@ async def edit_user_dao(cls, db: AsyncSession, user: dict) -> None:
         :param user: 需要更新的用户字典
         :return: 编辑校验结果
         """
-        await db.execute(update(SysUser), [user])
+        await db.execute(
+            update(SysUser),
+            [{key: value for key, value in user.items() if key not in {'create_time', 'update_time'}}],
+        )
 
     @classmethod
     async def delete_user_dao(cls, db: AsyncSession, user: UserModel) -> None:
@@ -368,9 +371,7 @@ async def delete_user_dao(cls, db: AsyncSession, user: UserModel) -> None:
         :return:
         """
         await db.execute(
-            update(SysUser)
-            .where(SysUser.user_id == user.user_id)
-            .values(del_flag='2', update_by=user.update_by, update_time=user.update_time)
+            update(SysUser).where(SysUser.user_id == user.user_id).values(del_flag='2', update_by=user.update_by)
         )
 
     @classmethod
diff --git a/ruoyi-fastapi-backend/module_admin/entity/do/config_do.py b/ruoyi-fastapi-backend/module_admin/entity/do/config_do.py
index b10c7e0d0..d657074c7 100644
--- a/ruoyi-fastapi-backend/module_admin/entity/do/config_do.py
+++ b/ruoyi-fastapi-backend/module_admin/entity/do/config_do.py
@@ -1,13 +1,12 @@
-from datetime import datetime
-
-from sqlalchemy import CHAR, Column, DateTime, Integer, String
+from sqlalchemy import CHAR, Column, Integer, String
 
+from common.mixin import AuditTimeMixin
 from config.database import Base
 from config.env import DataBaseConfig
 from utils.common_util import SqlalchemyUtil
 
 
-class SysConfig(Base):
+class SysConfig(AuditTimeMixin, Base):
     """
     参数配置表
     """
@@ -21,9 +20,7 @@ class SysConfig(Base):
     config_value = Column(String(500), nullable=True, server_default="''", comment='参数键值')
     config_type = Column(CHAR(1), nullable=True, server_default='N', comment='系统内置（Y是 N否）')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=True, default=datetime.now(), comment='创建时间')
     update_by = Column(String(64), nullable=True, server_default="''", comment='更新者')
-    update_time = Column(DateTime, nullable=True, default=datetime.now(), comment='更新时间')
     remark = Column(
         String(500),
         nullable=True,
diff --git a/ruoyi-fastapi-backend/module_admin/entity/do/dept_do.py b/ruoyi-fastapi-backend/module_admin/entity/do/dept_do.py
index 92d65de97..0a90e7461 100644
--- a/ruoyi-fastapi-backend/module_admin/entity/do/dept_do.py
+++ b/ruoyi-fastapi-backend/module_admin/entity/do/dept_do.py
@@ -1,13 +1,12 @@
-from datetime import datetime
-
-from sqlalchemy import CHAR, BigInteger, Column, DateTime, Integer, String
+from sqlalchemy import CHAR, BigInteger, Column, Integer, String
 
+from common.mixin import AuditTimeMixin
 from config.database import Base
 from config.env import DataBaseConfig
 from utils.common_util import SqlalchemyUtil
 
 
-class SysDept(Base):
+class SysDept(AuditTimeMixin, Base):
     """
     部门表
     """
@@ -41,6 +40,4 @@ class SysDept(Base):
     status = Column(CHAR(1), nullable=True, server_default='0', comment='部门状态（0正常 1停用）')
     del_flag = Column(CHAR(1), nullable=True, server_default='0', comment='删除标志（0代表存在 2代表删除）')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=True, default=datetime.now(), comment='创建时间')
     update_by = Column(String(64), nullable=True, server_default="''", comment='更新者')
-    update_time = Column(DateTime, nullable=True, default=datetime.now(), comment='更新时间')
diff --git a/ruoyi-fastapi-backend/module_admin/entity/do/dict_do.py b/ruoyi-fastapi-backend/module_admin/entity/do/dict_do.py
index 0a84b8f14..4d9bb77b8 100644
--- a/ruoyi-fastapi-backend/module_admin/entity/do/dict_do.py
+++ b/ruoyi-fastapi-backend/module_admin/entity/do/dict_do.py
@@ -1,13 +1,12 @@
-from datetime import datetime
-
-from sqlalchemy import CHAR, BigInteger, Column, DateTime, Integer, String
+from sqlalchemy import CHAR, BigInteger, Column, Integer, String
 
+from common.mixin import AuditTimeMixin
 from config.database import Base
 from config.env import DataBaseConfig
 from utils.common_util import SqlalchemyUtil
 
 
-class SysDictType(Base):
+class SysDictType(AuditTimeMixin, Base):
     """
     字典类型表
     """
@@ -20,9 +19,7 @@ class SysDictType(Base):
     dict_type = Column(String(100), unique=True, nullable=True, server_default="''", comment='字典类型')
     status = Column(CHAR(1), nullable=True, server_default='0', comment='状态（0正常 1停用）')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=True, default=datetime.now(), comment='创建时间')
     update_by = Column(String(64), nullable=True, server_default="''", comment='更新者')
-    update_time = Column(DateTime, nullable=True, default=datetime.now(), comment='更新时间')
     remark = Column(
         String(500),
         nullable=True,
@@ -31,7 +28,7 @@ class SysDictType(Base):
     )
 
 
-class SysDictData(Base):
+class SysDictData(AuditTimeMixin, Base):
     """
     字典数据表
     """
@@ -59,9 +56,7 @@ class SysDictData(Base):
     is_default = Column(CHAR(1), nullable=True, server_default='N', comment='是否默认（Y是 N否）')
     status = Column(CHAR(1), nullable=True, server_default='0', comment='状态（0正常 1停用）')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=True, default=datetime.now(), comment='创建时间')
     update_by = Column(String(64), nullable=True, server_default="''", comment='更新者')
-    update_time = Column(DateTime, nullable=True, default=datetime.now(), comment='更新时间')
     remark = Column(
         String(500),
         nullable=True,
diff --git a/ruoyi-fastapi-backend/module_admin/entity/do/file_do.py b/ruoyi-fastapi-backend/module_admin/entity/do/file_do.py
index 9a903410a..899d28b98 100644
--- a/ruoyi-fastapi-backend/module_admin/entity/do/file_do.py
+++ b/ruoyi-fastapi-backend/module_admin/entity/do/file_do.py
@@ -2,15 +2,18 @@
 
 from sqlalchemy import CHAR, BigInteger, Column, DateTime, Index, Integer, String, Text, UniqueConstraint
 
+from common.mixin import AuditTimeMixin, CreateTimeMixin
 from config.database import Base
 
 
-class SysFileInfo(Base):
+class SysFileInfo(AuditTimeMixin, Base):
     """
     文件信息表
     """
 
     __tablename__ = 'sys_file_info'
+    __create_time_nullable__ = False
+    __update_time_nullable__ = False
     __table_args__ = (
         UniqueConstraint(
             'storage_type',
@@ -49,20 +52,19 @@ class SysFileInfo(Base):
     file_hash = Column(String(64), nullable=False, comment='文件SHA-256')
     status = Column(String(20), nullable=False, server_default='active', comment='文件状态')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=False, default=datetime.now, comment='创建时间')
     update_by = Column(String(64), nullable=True, server_default="''", comment='更新者')
-    update_time = Column(DateTime, nullable=False, default=datetime.now, comment='更新时间')
     expire_time = Column(DateTime, nullable=True, comment='过期时间')
     deleted_time = Column(DateTime, nullable=True, comment='移入回收站时间')
     del_flag = Column(CHAR(1), nullable=False, server_default='0', comment='删除标志')
 
 
-class SysFileReference(Base):
+class SysFileReference(CreateTimeMixin, Base):
     """
     文件业务引用表
     """
 
     __tablename__ = 'sys_file_reference'
+    __create_time_nullable__ = False
     __table_args__ = (
         UniqueConstraint(
             'file_id',
@@ -82,15 +84,16 @@ class SysFileReference(Base):
     business_name = Column(String(255), nullable=True, comment='业务名称')
     retention_expire_time = Column(DateTime, nullable=True, comment='保留期限到期时间')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=False, default=datetime.now, comment='创建时间')
 
 
-class SysFileRetentionPolicy(Base):
+class SysFileRetentionPolicy(AuditTimeMixin, Base):
     """
     文件业务保留策略表
     """
 
     __tablename__ = 'sys_file_retention_policy'
+    __create_time_nullable__ = False
+    __update_time_nullable__ = False
     __table_args__ = {'comment': '文件业务保留策略表'}
 
     business_type = Column(String(50), primary_key=True, nullable=False, comment='业务类型')
@@ -98,17 +101,16 @@ class SysFileRetentionPolicy(Base):
     status = Column(CHAR(1), nullable=False, server_default='0', comment='状态（0启用 1停用）')
     remark = Column(String(500), nullable=True, comment='备注')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=False, default=datetime.now, comment='创建时间')
     update_by = Column(String(64), nullable=True, server_default="''", comment='更新者')
-    update_time = Column(DateTime, nullable=False, default=datetime.now, comment='更新时间')
 
 
-class SysFileRetentionNotice(Base):
+class SysFileRetentionNotice(CreateTimeMixin, Base):
     """
     文件保留期限提醒表
     """
 
     __tablename__ = 'sys_file_retention_notice'
+    __create_time_nullable__ = False
     __table_args__ = (
         UniqueConstraint(
             'file_id',
@@ -126,17 +128,17 @@ class SysFileRetentionNotice(Base):
     notice_type = Column(String(20), nullable=False, comment='提醒类型')
     expire_time = Column(DateTime, nullable=False, comment='文件过期时间')
     status = Column(CHAR(1), nullable=False, server_default='0', comment='状态（0未读 1已读 2已失效）')
-    create_time = Column(DateTime, nullable=False, default=datetime.now, comment='创建时间')
     read_by = Column(String(64), nullable=True, server_default="''", comment='读取者')
     read_time = Column(DateTime, nullable=True, comment='读取时间')
 
 
-class SysFileAcl(Base):
+class SysFileAcl(CreateTimeMixin, Base):
     """
     文件访问控制表
     """
 
     __tablename__ = 'sys_file_acl'
+    __create_time_nullable__ = False
     __table_args__ = (
         UniqueConstraint(
             'file_id',
@@ -159,7 +161,6 @@ class SysFileAcl(Base):
     include_children = Column(CHAR(1), nullable=False, server_default='0', comment='部门是否包含下级')
     expire_time = Column(DateTime, nullable=True, comment='授权过期时间')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=False, default=datetime.now, comment='创建时间')
     del_flag = Column(CHAR(1), nullable=False, server_default='0', comment='删除标志')
 
 
diff --git a/ruoyi-fastapi-backend/module_admin/entity/do/job_do.py b/ruoyi-fastapi-backend/module_admin/entity/do/job_do.py
index 9ee6dd97e..66c5bf49c 100644
--- a/ruoyi-fastapi-backend/module_admin/entity/do/job_do.py
+++ b/ruoyi-fastapi-backend/module_admin/entity/do/job_do.py
@@ -1,15 +1,14 @@
-from datetime import datetime
-
 from sqlalchemy import CHAR, BigInteger, Column, DateTime, String
 from sqlalchemy.dialects.mysql import DATETIME
 from sqlalchemy.dialects.postgresql import TIMESTAMP
 
+from common.mixin import AuditTimeMixin, CreateTimeMixin
 from config.database import Base
 
 JOB_LOG_TIME_TYPE = DateTime().with_variant(DATETIME(fsp=3), 'mysql').with_variant(TIMESTAMP(precision=3), 'postgresql')
 
 
-class SysJob(Base):
+class SysJob(AuditTimeMixin, Base):
     """
     定时任务调度表
     """
@@ -34,13 +33,11 @@ class SysJob(Base):
     concurrent = Column(CHAR(1), nullable=True, server_default='1', comment='是否并发执行（0允许 1禁止）')
     status = Column(CHAR(1), nullable=True, server_default='0', comment='状态（0正常 1暂停）')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=True, default=datetime.now(), comment='创建时间')
     update_by = Column(String(64), nullable=True, server_default="''", comment='更新者')
-    update_time = Column(DateTime, nullable=True, default=datetime.now(), comment='更新时间')
     remark = Column(String(500), nullable=True, server_default="''", comment='备注信息')
 
 
-class SysJobLog(Base):
+class SysJobLog(CreateTimeMixin, Base):
     """
     定时任务调度日志表
     """
@@ -61,4 +58,3 @@ class SysJobLog(Base):
     exception_info = Column(String(2000), nullable=True, server_default="''", comment='异常信息')
     start_time = Column(JOB_LOG_TIME_TYPE, nullable=True, comment='执行开始时间')
     end_time = Column(JOB_LOG_TIME_TYPE, nullable=True, comment='执行结束时间')
-    create_time = Column(DateTime, nullable=True, default=datetime.now(), comment='创建时间')
diff --git a/ruoyi-fastapi-backend/module_admin/entity/do/log_do.py b/ruoyi-fastapi-backend/module_admin/entity/do/log_do.py
index 298921c27..e9bcb53d0 100644
--- a/ruoyi-fastapi-backend/module_admin/entity/do/log_do.py
+++ b/ruoyi-fastapi-backend/module_admin/entity/do/log_do.py
@@ -21,7 +21,7 @@ class SysLogininfor(Base):
     os = Column(String(50), nullable=True, server_default="''", comment='操作系统')
     status = Column(CHAR(1), nullable=True, server_default='0', comment='登录状态（0成功 1失败）')
     msg = Column(String(255), nullable=True, server_default="''", comment='提示消息')
-    login_time = Column(DateTime, nullable=True, default=datetime.now(), comment='访问时间')
+    login_time = Column(DateTime, nullable=True, default=datetime.now, comment='访问时间')
 
     idx_sys_logininfor_s = Index('idx_sys_logininfor_s', status)
     idx_sys_logininfor_lt = Index('idx_sys_logininfor_lt', login_time)
@@ -52,7 +52,7 @@ class SysOperLog(Base):
     json_result = Column(String(2000), nullable=True, server_default="''", comment='返回参数')
     status = Column(Integer, nullable=True, server_default='0', comment='操作状态（0正常 1异常）')
     error_msg = Column(String(2000), nullable=True, server_default="''", comment='错误消息')
-    oper_time = Column(DateTime, nullable=True, default=datetime.now(), comment='操作时间')
+    oper_time = Column(DateTime, nullable=True, default=datetime.now, comment='操作时间')
     cost_time = Column(BigInteger, nullable=True, server_default='0', comment='消耗时间')
 
     idx_sys_oper_log_bt = Index('idx_sys_oper_log_bt', business_type)
diff --git a/ruoyi-fastapi-backend/module_admin/entity/do/menu_do.py b/ruoyi-fastapi-backend/module_admin/entity/do/menu_do.py
index 94d31e15f..4ce682a24 100644
--- a/ruoyi-fastapi-backend/module_admin/entity/do/menu_do.py
+++ b/ruoyi-fastapi-backend/module_admin/entity/do/menu_do.py
@@ -1,13 +1,12 @@
-from datetime import datetime
-
-from sqlalchemy import CHAR, BigInteger, Column, DateTime, Integer, String
+from sqlalchemy import CHAR, BigInteger, Column, Integer, String
 
+from common.mixin import AuditTimeMixin
 from config.database import Base
 from config.env import DataBaseConfig
 from utils.common_util import SqlalchemyUtil
 
 
-class SysMenu(Base):
+class SysMenu(AuditTimeMixin, Base):
     """
     菜单权限表
     """
@@ -46,7 +45,5 @@ class SysMenu(Base):
     )
     icon = Column(String(100), nullable=True, server_default='#', comment='菜单图标')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=True, default=datetime.now(), comment='创建时间')
     update_by = Column(String(64), nullable=True, server_default="''", comment='更新者')
-    update_time = Column(DateTime, nullable=True, default=datetime.now(), comment='更新时间')
     remark = Column(String(500), nullable=True, server_default="''", comment='备注')
diff --git a/ruoyi-fastapi-backend/module_admin/entity/do/notice_do.py b/ruoyi-fastapi-backend/module_admin/entity/do/notice_do.py
index 749004e79..9565ad354 100644
--- a/ruoyi-fastapi-backend/module_admin/entity/do/notice_do.py
+++ b/ruoyi-fastapi-backend/module_admin/entity/do/notice_do.py
@@ -3,12 +3,13 @@
 from sqlalchemy import CHAR, BigInteger, Column, DateTime, Integer, LargeBinary, String, UniqueConstraint
 from sqlalchemy.dialects import mysql
 
+from common.mixin import AuditTimeMixin
 from config.database import Base
 from config.env import DataBaseConfig
 from utils.common_util import SqlalchemyUtil
 
 
-class SysNotice(Base):
+class SysNotice(AuditTimeMixin, Base):
     """
     通知公告表
     """
@@ -27,9 +28,7 @@ class SysNotice(Base):
     )
     status = Column(CHAR(1), nullable=True, server_default='0', comment='公告状态（0正常 1关闭）')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=True, comment='创建时间', default=datetime.now())
     update_by = Column(String(64), nullable=True, server_default="''", comment='更新者')
-    update_time = Column(DateTime, nullable=True, comment='更新时间', default=datetime.now())
     remark = Column(
         String(255),
         nullable=True,
diff --git a/ruoyi-fastapi-backend/module_admin/entity/do/post_do.py b/ruoyi-fastapi-backend/module_admin/entity/do/post_do.py
index c42d05783..6791533ed 100644
--- a/ruoyi-fastapi-backend/module_admin/entity/do/post_do.py
+++ b/ruoyi-fastapi-backend/module_admin/entity/do/post_do.py
@@ -1,13 +1,12 @@
-from datetime import datetime
-
-from sqlalchemy import CHAR, BigInteger, Column, DateTime, Integer, String
+from sqlalchemy import CHAR, BigInteger, Column, Integer, String
 
+from common.mixin import AuditTimeMixin
 from config.database import Base
 from config.env import DataBaseConfig
 from utils.common_util import SqlalchemyUtil
 
 
-class SysPost(Base):
+class SysPost(AuditTimeMixin, Base):
     """
     岗位信息表
     """
@@ -21,9 +20,7 @@ class SysPost(Base):
     post_sort = Column(Integer, nullable=False, comment='显示顺序')
     status = Column(CHAR(1), nullable=False, comment='状态（0正常 1停用）')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=True, default=datetime.now(), comment='创建时间')
     update_by = Column(String(64), nullable=True, server_default="''", comment='更新者')
-    update_time = Column(DateTime, nullable=True, default=datetime.now(), comment='更新时间')
     remark = Column(
         String(500),
         nullable=True,
diff --git a/ruoyi-fastapi-backend/module_admin/entity/do/role_do.py b/ruoyi-fastapi-backend/module_admin/entity/do/role_do.py
index 0d630cd8b..f1353c73d 100644
--- a/ruoyi-fastapi-backend/module_admin/entity/do/role_do.py
+++ b/ruoyi-fastapi-backend/module_admin/entity/do/role_do.py
@@ -1,14 +1,13 @@
-from datetime import datetime
-
-from sqlalchemy import CHAR, BigInteger, Column, DateTime, Integer, SmallInteger, String
+from sqlalchemy import CHAR, BigInteger, Column, Integer, SmallInteger, String
 from sqlalchemy.dialects import mysql
 
+from common.mixin import AuditTimeMixin
 from config.database import Base
 from config.env import DataBaseConfig
 from utils.common_util import SqlalchemyUtil
 
 
-class SysRole(Base):
+class SysRole(AuditTimeMixin, Base):
     """
     角色信息表
     """
@@ -41,9 +40,7 @@ class SysRole(Base):
     status = Column(CHAR(1), nullable=False, comment='角色状态（0正常 1停用）')
     del_flag = Column(CHAR(1), nullable=True, server_default='0', comment='删除标志（0代表存在 2代表删除）')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=True, default=datetime.now(), comment='创建时间')
     update_by = Column(String(64), nullable=True, server_default="''", comment='更新者')
-    update_time = Column(DateTime, nullable=True, default=datetime.now(), comment='更新时间')
     remark = Column(
         String(500),
         nullable=True,
diff --git a/ruoyi-fastapi-backend/module_admin/entity/do/user_do.py b/ruoyi-fastapi-backend/module_admin/entity/do/user_do.py
index 500e0b7db..4a7fb904a 100644
--- a/ruoyi-fastapi-backend/module_admin/entity/do/user_do.py
+++ b/ruoyi-fastapi-backend/module_admin/entity/do/user_do.py
@@ -1,13 +1,12 @@
-from datetime import datetime
-
 from sqlalchemy import CHAR, BigInteger, Column, DateTime, String
 
+from common.mixin import AuditTimeMixin
 from config.database import Base
 from config.env import DataBaseConfig
 from utils.common_util import SqlalchemyUtil
 
 
-class SysUser(Base):
+class SysUser(AuditTimeMixin, Base):
     """
     用户信息表
     """
@@ -36,9 +35,7 @@ class SysUser(Base):
     login_date = Column(DateTime, nullable=True, comment='最后登录时间')
     pwd_update_date = Column(DateTime, nullable=True, comment='密码最后更新时间')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=True, comment='创建时间', default=datetime.now())
     update_by = Column(String(64), nullable=True, server_default="''", comment='更新者')
-    update_time = Column(DateTime, nullable=True, comment='更新时间', default=datetime.now())
     remark = Column(
         String(500),
         nullable=True,
diff --git a/ruoyi-fastapi-backend/module_admin/service/config_service.py b/ruoyi-fastapi-backend/module_admin/service/config_service.py
index 6dd3fbbae..374a3fe99 100644
--- a/ruoyi-fastapi-backend/module_admin/service/config_service.py
+++ b/ruoyi-fastapi-backend/module_admin/service/config_service.py
@@ -121,7 +121,7 @@ async def edit_config_services(
         :param page_object: 编辑参数配置对象
         :return: 编辑参数配置校验结果
         """
-        edit_config = page_object.model_dump(exclude_unset=True)
+        edit_config = page_object.model_dump(exclude_unset=True, exclude={'create_time', 'update_time'})
         config_info = await cls.config_detail_services(query_db, page_object.config_id)
         if config_info.config_id:
             if not await cls.check_config_key_unique_services(query_db, page_object):
diff --git a/ruoyi-fastapi-backend/module_admin/service/dept_service.py b/ruoyi-fastapi-backend/module_admin/service/dept_service.py
index d3bb94029..17a20387e 100644
--- a/ruoyi-fastapi-backend/module_admin/service/dept_service.py
+++ b/ruoyi-fastapi-backend/module_admin/service/dept_service.py
@@ -151,7 +151,7 @@ async def edit_dept_services(cls, query_db: AsyncSession, page_object: DeptModel
                 old_ancestors = old_dept.ancestors
                 page_object.ancestors = new_ancestors
                 await cls.update_dept_children(query_db, page_object.dept_id, new_ancestors, old_ancestors)
-            edit_dept = page_object.model_dump(exclude_unset=True)
+            edit_dept = page_object.model_dump(exclude_unset=True, exclude={'create_time', 'update_time'})
             await DeptDao.edit_dept_dao(query_db, edit_dept)
             if (
                 page_object.status == CommonConstant.DEPT_NORMAL
diff --git a/ruoyi-fastapi-backend/module_admin/service/dict_service.py b/ruoyi-fastapi-backend/module_admin/service/dict_service.py
index afc83cecb..64dd0eda7 100644
--- a/ruoyi-fastapi-backend/module_admin/service/dict_service.py
+++ b/ruoyi-fastapi-backend/module_admin/service/dict_service.py
@@ -99,7 +99,7 @@ async def edit_dict_type_services(
         :param page_object: 编辑字典类型对象
         :return: 编辑字典类型校验结果
         """
-        edit_dict_type = page_object.model_dump(exclude_unset=True)
+        edit_dict_type = page_object.model_dump(exclude_unset=True, exclude={'create_time', 'update_time'})
         dict_type_info = await cls.dict_type_detail_services(query_db, page_object.dict_id)
         if dict_type_info.dict_id:
             if not await cls.check_dict_type_unique_services(query_db, page_object):
@@ -114,7 +114,7 @@ async def edit_dict_type_services(
                             dictType=page_object.dict_type,
                             updateBy=page_object.update_by,
                             updateTime=page_object.update_time,
-                        ).model_dump(exclude_unset=True)
+                        ).model_dump(exclude_unset=True, exclude={'create_time', 'update_time'})
                         await DictDataDao.edit_dict_data_dao(query_db, edit_dict_data)
                 await DictTypeDao.edit_dict_type_dao(query_db, edit_dict_type)
                 await query_db.commit()
@@ -354,7 +354,7 @@ async def edit_dict_data_services(
         :param page_object: 编辑字典数据对象
         :return: 编辑字典数据校验结果
         """
-        edit_data_type = page_object.model_dump(exclude_unset=True)
+        edit_data_type = page_object.model_dump(exclude_unset=True, exclude={'create_time', 'update_time'})
         dict_data_info = await cls.dict_data_detail_services(query_db, page_object.dict_code)
         if dict_data_info.dict_code:
             if not await cls.check_dict_data_unique_services(query_db, page_object):
diff --git a/ruoyi-fastapi-backend/module_admin/service/file_business_service.py b/ruoyi-fastapi-backend/module_admin/service/file_business_service.py
index 6c7b0c70c..b17aeb662 100644
--- a/ruoyi-fastapi-backend/module_admin/service/file_business_service.py
+++ b/ruoyi-fastapi-backend/module_admin/service/file_business_service.py
@@ -275,7 +275,6 @@ async def add_file_retention_policy_services(
         )
         if exists_policy:
             raise ServiceException(message=f'业务类型{policy.business_type}的保留策略已存在')
-        current_time = datetime.now()
         db_policy = SysFileRetentionPolicy(
             **policy.model_dump(
                 exclude={
@@ -286,9 +285,7 @@ async def add_file_retention_policy_services(
                 }
             ),
             create_by=operator_name,
-            create_time=current_time,
             update_by=operator_name,
-            update_time=current_time,
         )
         try:
             await FileRetentionPolicyDao.add_file_retention_policy(query_db, db_policy)
@@ -329,7 +326,7 @@ async def edit_file_retention_policy_services(
                 'update_time',
             }
         )
-        policy_data.update(update_by=operator_name, update_time=datetime.now())
+        policy_data.update(update_by=operator_name)
         try:
             await FileRetentionPolicyDao.edit_file_retention_policy(
                 query_db,
diff --git a/ruoyi-fastapi-backend/module_admin/service/job_service.py b/ruoyi-fastapi-backend/module_admin/service/job_service.py
index 5e7313586..b0fba2280 100644
--- a/ruoyi-fastapi-backend/module_admin/service/job_service.py
+++ b/ruoyi-fastapi-backend/module_admin/service/job_service.py
@@ -111,7 +111,7 @@ async def edit_job_services(cls, query_db: AsyncSession, page_object: EditJobMod
         :param page_object: 编辑定时任务对象
         :return: 编辑定时任务校验结果
         """
-        edit_job = page_object.model_dump(exclude_unset=True)
+        edit_job = page_object.model_dump(exclude_unset=True, exclude={'create_time', 'update_time'})
         cls._deal_edit_job(page_object, edit_job)
         job_info = await cls.job_detail_services(query_db, page_object.job_id)
         if job_info:
diff --git a/ruoyi-fastapi-backend/module_admin/service/menu_service.py b/ruoyi-fastapi-backend/module_admin/service/menu_service.py
index e610503c6..6909a894c 100644
--- a/ruoyi-fastapi-backend/module_admin/service/menu_service.py
+++ b/ruoyi-fastapi-backend/module_admin/service/menu_service.py
@@ -166,7 +166,7 @@ async def edit_menu_services(cls, query_db: AsyncSession, page_object: MenuModel
         :param page_object: 编辑部门对象
         :return: 编辑菜单校验结果
         """
-        edit_menu = page_object.model_dump(exclude_unset=True)
+        edit_menu = page_object.model_dump(exclude_unset=True, exclude={'create_time', 'update_time'})
         menu_info = await cls.menu_detail_services(query_db, page_object.menu_id)
         if menu_info.menu_id:
             if not await cls.check_menu_name_unique_services(query_db, page_object):
diff --git a/ruoyi-fastapi-backend/module_admin/service/notice_service.py b/ruoyi-fastapi-backend/module_admin/service/notice_service.py
index d153cab75..0f09a92a4 100644
--- a/ruoyi-fastapi-backend/module_admin/service/notice_service.py
+++ b/ruoyi-fastapi-backend/module_admin/service/notice_service.py
@@ -147,7 +147,7 @@ async def edit_notice_services(cls, query_db: AsyncSession, page_object: NoticeM
         :param page_object: 编辑通知公告对象
         :return: 编辑通知公告校验结果
         """
-        edit_notice = page_object.model_dump(exclude_unset=True)
+        edit_notice = page_object.model_dump(exclude_unset=True, exclude={'create_time', 'update_time'})
         notice_info = await cls.notice_detail_services(query_db, page_object.notice_id)
         if notice_info.notice_id:
             if not await cls.check_notice_unique_services(query_db, page_object):
diff --git a/ruoyi-fastapi-backend/module_admin/service/post_service.py b/ruoyi-fastapi-backend/module_admin/service/post_service.py
index 9a11f23c2..46c020d71 100644
--- a/ruoyi-fastapi-backend/module_admin/service/post_service.py
+++ b/ruoyi-fastapi-backend/module_admin/service/post_service.py
@@ -92,7 +92,7 @@ async def edit_post_services(cls, query_db: AsyncSession, page_object: PostModel
         :param page_object: 编辑岗位对象
         :return: 编辑岗位校验结果
         """
-        edit_post = page_object.model_dump(exclude_unset=True)
+        edit_post = page_object.model_dump(exclude_unset=True, exclude={'create_time', 'update_time'})
         post_info = await cls.post_detail_services(query_db, page_object.post_id)
         if post_info.post_id:
             if not await cls.check_post_name_unique_services(query_db, page_object):
diff --git a/ruoyi-fastapi-backend/module_admin/service/role_service.py b/ruoyi-fastapi-backend/module_admin/service/role_service.py
index b7cd0a208..4db12a93a 100644
--- a/ruoyi-fastapi-backend/module_admin/service/role_service.py
+++ b/ruoyi-fastapi-backend/module_admin/service/role_service.py
@@ -149,7 +149,7 @@ async def add_role_services(cls, query_db: AsyncSession, page_object: AddRoleMod
         :param page_object: 新增角色对象
         :return: 新增角色校验结果
         """
-        add_role = RoleModel(**page_object.model_dump(by_alias=True))
+        add_role = RoleModel(**page_object.model_dump(by_alias=True, exclude={'create_time', 'update_time'}))
         if not await cls.check_role_name_unique_services(query_db, page_object):
             raise ServiceException(message=f'新增角色{page_object.role_name}失败，角色名称已存在')
         if not await cls.check_role_key_unique_services(query_db, page_object):
@@ -175,7 +175,10 @@ async def edit_role_services(cls, query_db: AsyncSession, page_object: AddRoleMo
         :param page_object: 编辑角色对象
         :return: 编辑角色校验结果
         """
-        edit_role = page_object.model_dump(exclude_unset=True, exclude={'admin'})
+        edit_role = page_object.model_dump(
+            exclude_unset=True,
+            exclude={'admin', 'create_time', 'update_time'},
+        )
         if page_object.type != 'status':
             del edit_role['menu_ids']
         if page_object.type == 'status':
@@ -213,7 +216,10 @@ async def role_datascope_services(cls, query_db: AsyncSession, page_object: AddR
         :param page_object: 角色数据权限对象
         :return: 分配角色数据权限结果
         """
-        edit_role = page_object.model_dump(exclude_unset=True, exclude={'admin', 'dept_ids'})
+        edit_role = page_object.model_dump(
+            exclude_unset=True,
+            exclude={'admin', 'dept_ids', 'create_time', 'update_time'},
+        )
         role_info = await cls.role_detail_services(query_db, page_object.role_id)
         if role_info.role_id:
             try:
diff --git a/ruoyi-fastapi-backend/module_admin/service/user_service.py b/ruoyi-fastapi-backend/module_admin/service/user_service.py
index 8c6834ecc..66565b21e 100644
--- a/ruoyi-fastapi-backend/module_admin/service/user_service.py
+++ b/ruoyi-fastapi-backend/module_admin/service/user_service.py
@@ -1,6 +1,5 @@
 import io
 import re
-from datetime import datetime
 from typing import Any
 
 import pandas as pd
@@ -198,7 +197,7 @@ async def add_user_services(cls, query_db: AsyncSession, page_object: AddUserMod
         :param page_object: 新增用户对象
         :return: 新增用户校验结果
         """
-        add_user = UserModel(**page_object.model_dump(by_alias=True))
+        add_user = UserModel(**page_object.model_dump(by_alias=True, exclude={'create_time', 'update_time'}))
         if not await cls.check_user_name_unique_services(query_db, page_object):
             raise ServiceException(message=f'新增用户{page_object.user_name}失败，登录账号已存在')
         if page_object.phonenumber and not await cls.check_phonenumber_unique_services(query_db, page_object):
@@ -245,7 +244,10 @@ async def edit_user_services(cls, query_db: AsyncSession, page_object: EditUserM
         :param page_object: 编辑用户对象
         :return: 编辑用户校验结果
         """
-        edit_user = page_object.model_dump(exclude_unset=True, exclude={'admin'})
+        edit_user = page_object.model_dump(
+            exclude_unset=True,
+            exclude={'admin', 'create_time', 'update_time'},
+        )
         cls._deal_edit_user(page_object, edit_user)
         user_info = await cls.user_detail_services(query_db, edit_user.get('user_id'))
         if user_info.data and user_info.data.user_id:
@@ -378,7 +380,10 @@ async def reset_user_services(cls, query_db: AsyncSession, page_object: ResetUse
         :param page_object: 重置用户对象
         :return: 重置用户校验结果
         """
-        reset_user = page_object.model_dump(exclude_unset=True, exclude={'admin'})
+        reset_user = page_object.model_dump(
+            exclude_unset=True,
+            exclude={'admin', 'create_time', 'update_time'},
+        )
         if page_object.old_password:
             user = (await UserDao.get_user_detail_by_id(query_db, user_id=page_object.user_id)).get('user_basic_info')
             if not PwdUtil.verify_password(page_object.old_password, user.password):
@@ -483,9 +488,7 @@ async def batch_import_user_services(
                     sex=row['sex'],
                     status=row['status'],
                     createBy=current_user.user.user_name,
-                    createTime=datetime.now(),
                     updateBy=current_user.user.user_name,
-                    updateTime=datetime.now(),
                 )
                 user_info = await UserDao.get_user_by_info(query_db, UserModel(userName=row['user_name']))
                 if user_info:
@@ -500,7 +503,6 @@ async def batch_import_user_services(
                             sex=row['sex'],
                             status=row['status'],
                             updateBy=current_user.user.user_name,
-                            updateTime=datetime.now(),
                         )
                         edit_user_model.validate_fields()
                         await cls.check_user_allowed_services(edit_user_model)
@@ -511,7 +513,10 @@ async def batch_import_user_services(
                             await DeptService.check_dept_data_scope_services(
                                 query_db, edit_user_model.dept_id, dept_data_scope_sql
                             )
-                        edit_user = edit_user_model.model_dump(exclude_unset=True)
+                        edit_user = edit_user_model.model_dump(
+                            exclude_unset=True,
+                            exclude={'create_time', 'update_time'},
+                        )
                         await UserDao.edit_user_dao(query_db, edit_user)
                     else:
                         add_error_result.append(f'{count}.用户账号{row["user_name"]}已存在')
diff --git a/ruoyi-fastapi-backend/module_generator/controller/gen_controller.py b/ruoyi-fastapi-backend/module_generator/controller/gen_controller.py
index e4e45ed4b..08a40806d 100644
--- a/ruoyi-fastapi-backend/module_generator/controller/gen_controller.py
+++ b/ruoyi-fastapi-backend/module_generator/controller/gen_controller.py
@@ -1,4 +1,3 @@
-from datetime import datetime
 from typing import Annotated
 
 from fastapi import Path, Query, Request, Response
@@ -133,7 +132,6 @@ async def edit_gen_table(
     current_user: Annotated[CurrentUserModel, CurrentUserDependency()],
 ) -> Response:
     edit_gen_table.update_by = current_user.user.user_name
-    edit_gen_table.update_time = datetime.now()
     await GenTableService.validate_edit(edit_gen_table)
     edit_gen_result = await GenTableService.edit_gen_table_services(query_db, edit_gen_table)
     logger.info(edit_gen_result.message)
diff --git a/ruoyi-fastapi-backend/module_generator/dao/gen_dao.py b/ruoyi-fastapi-backend/module_generator/dao/gen_dao.py
index 7c0dd70a4..44ffed84a 100644
--- a/ruoyi-fastapi-backend/module_generator/dao/gen_dao.py
+++ b/ruoyi-fastapi-backend/module_generator/dao/gen_dao.py
@@ -347,7 +347,11 @@ async def add_gen_table_dao(cls, db: AsyncSession, gen_table: GenTableModel) ->
         :param gen_table: 业务表对象
         :return:
         """
-        db_gen_table = GenTable(**GenTableBaseModel(**gen_table.model_dump(by_alias=True)).model_dump())
+        db_gen_table = GenTable(
+            **GenTableBaseModel(
+                **gen_table.model_dump(by_alias=True, exclude={'create_time', 'update_time'})
+            ).model_dump(exclude={'create_time', 'update_time'})
+        )
         db.add(db_gen_table)
         await db.flush()
 
@@ -362,7 +366,10 @@ async def edit_gen_table_dao(cls, db: AsyncSession, gen_table: dict) -> None:
         :param gen_table: 需要更新的业务表字典
         :return:
         """
-        await db.execute(update(GenTable), [GenTableBaseModel(**gen_table).model_dump()])
+        await db.execute(
+            update(GenTable),
+            [GenTableBaseModel(**gen_table).model_dump(exclude={'create_time', 'update_time'})],
+        )
 
     @classmethod
     async def delete_gen_table_dao(cls, db: AsyncSession, gen_table: GenTableModel) -> None:
@@ -431,7 +438,9 @@ async def add_gen_table_column_dao(cls, db: AsyncSession, gen_table_column: GenT
         :return:
         """
         db_gen_table_column = GenTableColumn(
-            **GenTableColumnBaseModel(**gen_table_column.model_dump(by_alias=True)).model_dump()
+            **GenTableColumnBaseModel(
+                **gen_table_column.model_dump(by_alias=True, exclude={'create_time', 'update_time'})
+            ).model_dump(exclude={'create_time', 'update_time'})
         )
         db.add(db_gen_table_column)
         await db.flush()
@@ -447,7 +456,10 @@ async def edit_gen_table_column_dao(cls, db: AsyncSession, gen_table_column: dic
         :param gen_table_column: 需要更新的业务表字段字典
         :return:
         """
-        await db.execute(update(GenTableColumn), [GenTableColumnBaseModel(**gen_table_column).model_dump()])
+        await db.execute(
+            update(GenTableColumn),
+            [GenTableColumnBaseModel(**gen_table_column).model_dump(exclude={'create_time', 'update_time'})],
+        )
 
     @classmethod
     async def delete_gen_table_column_by_table_id_dao(
diff --git a/ruoyi-fastapi-backend/module_generator/entity/do/gen_do.py b/ruoyi-fastapi-backend/module_generator/entity/do/gen_do.py
index a5b386bbf..5b16e000a 100644
--- a/ruoyi-fastapi-backend/module_generator/entity/do/gen_do.py
+++ b/ruoyi-fastapi-backend/module_generator/entity/do/gen_do.py
@@ -1,14 +1,13 @@
-from datetime import datetime
-
-from sqlalchemy import CHAR, BigInteger, Column, DateTime, Integer, String
+from sqlalchemy import CHAR, BigInteger, Column, Integer, String
 from sqlalchemy.orm import foreign, relationship
 
+from common.mixin import AuditTimeMixin
 from config.database import Base
 from config.env import DataBaseConfig
 from utils.common_util import SqlalchemyUtil
 
 
-class GenTable(Base):
+class GenTable(AuditTimeMixin, Base):
     """
     代码生成业务表
     """
@@ -49,9 +48,7 @@ class GenTable(Base):
     gen_path = Column(String(200), nullable=True, server_default='/', comment='生成路径（不填默认项目路径）')
     options = Column(String(1000), nullable=True, comment='其它生成选项')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=True, default=datetime.now(), comment='创建时间')
     update_by = Column(String(64), nullable=True, server_default="''", comment='更新者')
-    update_time = Column(DateTime, nullable=True, default=datetime.now(), comment='更新时间')
     remark = Column(
         String(500),
         nullable=True,
@@ -67,7 +64,7 @@ class GenTable(Base):
     )
 
 
-class GenTableColumn(Base):
+class GenTableColumn(AuditTimeMixin, Base):
     """
     代码生成业务表字段
     """
@@ -99,9 +96,7 @@ class GenTableColumn(Base):
     dict_type = Column(String(200), nullable=True, server_default="''", comment='字典类型')
     sort = Column(Integer, nullable=True, comment='排序')
     create_by = Column(String(64), server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=True, default=datetime.now(), comment='创建时间')
     update_by = Column(String(64), server_default="''", comment='更新者')
-    update_time = Column(DateTime, nullable=True, default=datetime.now(), comment='更新时间')
 
     tables = relationship(
         'GenTable', primaryjoin=lambda: foreign(GenTableColumn.table_id) == GenTable.table_id, back_populates='columns'
diff --git a/ruoyi-fastapi-backend/module_generator/service/gen_service.py b/ruoyi-fastapi-backend/module_generator/service/gen_service.py
index f9436cfad..4e9e80253 100644
--- a/ruoyi-fastapi-backend/module_generator/service/gen_service.py
+++ b/ruoyi-fastapi-backend/module_generator/service/gen_service.py
@@ -2,7 +2,6 @@
 import json
 import os
 import zipfile
-from datetime import datetime
 from typing import Any
 
 import aiofiles
@@ -174,7 +173,11 @@ async def edit_gen_table_services(cls, query_db: AsyncSession, page_object: Edit
         :param page_object: 编辑业务表对象
         :return: 编辑业务表校验结果
         """
-        edit_gen_table = page_object.model_dump(exclude_unset=True, by_alias=True)
+        edit_gen_table = page_object.model_dump(
+            exclude_unset=True,
+            by_alias=True,
+            exclude={'create_time', 'update_time'},
+        )
         gen_table_info = await cls.get_gen_table_by_id_services(query_db, page_object.table_id)
         if gen_table_info.table_id:
             try:
@@ -184,9 +187,12 @@ async def edit_gen_table_services(cls, query_db: AsyncSession, page_object: Edit
                 await GenTableDao.edit_gen_table_dao(query_db, edit_gen_table)
                 for gen_table_column in page_object.columns:
                     gen_table_column.update_by = page_object.update_by
-                    gen_table_column.update_time = datetime.now()
                     await GenTableColumnDao.edit_gen_table_column_dao(
-                        query_db, gen_table_column.model_dump(by_alias=True)
+                        query_db,
+                        gen_table_column.model_dump(
+                            by_alias=True,
+                            exclude={'create_time', 'update_time'},
+                        ),
                     )
                 await query_db.commit()
                 return CrudResponseModel(is_success=True, message='更新成功')
diff --git a/ruoyi-fastapi-backend/module_generator/templates/python/controller.py.jinja2 b/ruoyi-fastapi-backend/module_generator/templates/python/controller.py.jinja2
index 11aec6738..ab0ebaf68 100644
--- a/ruoyi-fastapi-backend/module_generator/templates/python/controller.py.jinja2
+++ b/ruoyi-fastapi-backend/module_generator/templates/python/controller.py.jinja2
@@ -2,15 +2,6 @@
 {% set pk_field = pkColumn.python_field | camel_to_snake %}
 {% set pkParentheseIndex = pkColumn.column_comment.find("（") %}
 {% set pk_field_comment = pkColumn.column_comment[:pkParentheseIndex] if pkParentheseIndex != -1 else pkColumn.column_comment %}
-{% set need_import_datetime = namespace(has_datetime=False) %}
-{% for column in columns %}
-{% if column.python_field in ["createTime", "updateTime"] %}
-{% set need_import_datetime.has_datetime = True %}
-{% endif %}
-{% endfor %}
-{% if need_import_datetime.has_datetime %}
-from datetime import datetime
-{% endif %}
 from typing import Annotated
 
 from fastapi import Form, Path, Query, Request, Response
@@ -82,12 +73,8 @@ async def add_{{ moduleName }}_{{ businessName }}(
     {% for column in columns %}
     {% if column.python_field == "createBy" %}
     add_{{ businessName }}.create_by = current_user.user.user_name
-    {% elif column.python_field == "createTime" %}
-    add_{{ businessName }}.create_time = datetime.now()
     {% elif column.python_field == "updateBy" %}
     add_{{ businessName }}.update_by = current_user.user.user_name
-    {% elif column.python_field == "updateTime" %}
-    add_{{ businessName }}.update_time = datetime.now()
     {% endif %}
     {% endfor %}
     add_{{ businessName }}_result = await {{ BusinessName }}Service.add_{{ businessName }}_services(query_db, add_{{ businessName }})
@@ -114,8 +101,6 @@ async def edit_{{ moduleName }}_{{ businessName }}(
     {% for column in columns %}
     {% if column.python_field == "updateBy" %}
     edit_{{ businessName }}.update_by = current_user.user.user_name
-    {% elif column.python_field == "updateTime" %}
-    edit_{{ businessName }}.update_time = datetime.now()
     {% endif %}
     {% endfor %}
     edit_{{ businessName }}_result = await {{ BusinessName }}Service.edit_{{ businessName }}_services(query_db, edit_{{ businessName }})
diff --git a/ruoyi-fastapi-backend/module_generator/templates/python/dao.py.jinja2 b/ruoyi-fastapi-backend/module_generator/templates/python/dao.py.jinja2
index 3337e3723..3a5e74bcb 100644
--- a/ruoyi-fastapi-backend/module_generator/templates/python/dao.py.jinja2
+++ b/ruoyi-fastapi-backend/module_generator/templates/python/dao.py.jinja2
@@ -2,8 +2,41 @@
 {% set pk_field = pkColumn.python_field | camel_to_snake %}
 {% set pkParentheseIndex = pkColumn.column_comment.find("（") %}
 {% set pk_field_comment = pkColumn.column_comment[:pkParentheseIndex] if pkParentheseIndex != -1 else pkColumn.column_comment %}
+{% set add_exclude_fields = namespace(fields=[]) %}
+{% if table.sub %}
+{% set add_exclude_fields.fields = add_exclude_fields.fields + [subclassName ~ '_list'] %}
+{% endif %}
+{% for column in columns %}
+{% if column.column_name in ["create_time", "update_time"] %}
+{% set add_exclude_fields.fields = add_exclude_fields.fields + [column.column_name] %}
+{% elif not column.insert and column.column_name not in column_not_add_show + column_not_edit_show %}
+{% set add_exclude_fields.fields = add_exclude_fields.fields + [column.python_field | camel_to_snake] %}
+{% endif %}
+{% endfor %}
+{% set edit_audit_fields = namespace(fields=[]) %}
+{% for column in columns %}
+{% if column.column_name in ["create_time", "update_time"] %}
+{% set edit_audit_fields.fields = edit_audit_fields.fields + [column.column_name] %}
+{% endif %}
+{% endfor %}
+{% set edit_audit_values = namespace(value='') %}
+{% for field in edit_audit_fields.fields %}
+{% set edit_audit_values.value = edit_audit_values.value ~ "'" ~ field ~ "'" ~ (", " if not loop.last else "") %}
+{% endfor %}
+{% set sub_edit_audit_fields = namespace(fields=[]) %}
+{% if table.sub %}
+{% for column in subTable.columns %}
+{% if column.column_name in ["create_time", "update_time"] %}
+{% set sub_edit_audit_fields.fields = sub_edit_audit_fields.fields + [column.column_name] %}
+{% endif %}
+{% endfor %}
+{% endif %}
+{% set sub_edit_audit_values = namespace(value='') %}
+{% for field in sub_edit_audit_fields.fields %}
+{% set sub_edit_audit_values.value = sub_edit_audit_values.value ~ "'" ~ field ~ "'" ~ (", " if not loop.last else "") %}
+{% endfor %}
 {% for column in columns %}
-{% if column.query and column.query_type == 'BETWEEN' and column.python_field == "createTime" %}
+{% if column.query and column.query_type == 'BETWEEN' and column.column_name == "create_time" %}
 from datetime import datetime, time
 {% endif %}
 {% endfor %}
@@ -153,7 +186,7 @@ class {{ BusinessName }}Dao:
         :param {{ businessName }}: {{ functionName }}对象
         :return:
         """
-        db_{{ businessName }} = {{ ClassName }}(**{{ businessName }}.model_dump(exclude={% raw %}{{% endraw %}{% if table.sub %}'{{ subclassName }}_list', {% endif %}{% for column in columns %}{% if not column.insert and column.column_name not in column_not_add_show + column_not_edit_show %}'{{ column.python_field | camel_to_snake  }}'{% if not loop.last %}, {% endif %}{% endif %}{% endfor %}{% raw %}}{% endraw %}))
+        db_{{ businessName }} = {{ ClassName }}(**{{ businessName }}.model_dump(exclude={% raw %}{{% endraw %}{% for field in add_exclude_fields.fields %}'{{ field }}'{% if not loop.last %}, {% endif %}{% endfor %}{% raw %}}{% endraw %}))
         db.add(db_{{ businessName }})
         await db.flush()
 
@@ -168,7 +201,11 @@ class {{ BusinessName }}Dao:
         :param {{ businessName }}: 需要更新的{{ functionName }}字典
         :return:
         """
-        await db.execute(update({{ ClassName }}), [{{ businessName }}])
+        safe_{{ businessName }} = {
+            key: value
+            for key, value in {{ businessName }}.items()
+            if key not in {% if edit_audit_values.value %}{{ "{" }}{{ edit_audit_values.value }}{{ "}" }}{% else %}set(){% endif %}{{ "\n" }}        }
+        await db.execute(update({{ ClassName }}), [safe_{{ businessName }}])
 
     @classmethod
     async def delete_{{ businessName }}_dao(cls, db: AsyncSession, {{ businessName }}: {{ BusinessName }}Model) -> None:
@@ -191,7 +228,7 @@ class {{ BusinessName }}Dao:
         :param {{ subTable.business_name }}: {{ subTable.function_name }}对象
         :return:
         """
-        db_{{ subTable.business_name }} = {{ subClassName }}(**{{ subTable.business_name }}.model_dump())
+        db_{{ subTable.business_name }} = {{ subClassName }}(**{{ subTable.business_name }}.model_dump(exclude={% raw %}{{% endraw %}{% for field in sub_edit_audit_fields.fields %}'{{ field }}'{% if not loop.last %}, {% endif %}{% endfor %}{% raw %}}{% endraw %}))
         db.add(db_{{ subTable.business_name }})
         await db.flush()
 
@@ -206,7 +243,11 @@ class {{ BusinessName }}Dao:
         :param {{ subTable.business_name }}: 需要更新的{{ subTable.function_name }}字典
         :return:
         """
-        await db.execute(update({{ subClassName }}), [{{ subTable.business_name }}])
+        safe_{{ subTable.business_name }} = {
+            key: value
+            for key, value in {{ subTable.business_name }}.items()
+            if key not in {% if sub_edit_audit_values.value %}{{ "{" }}{{ sub_edit_audit_values.value }}{{ "}" }}{% else %}set(){% endif %}{{ "\n" }}        }
+        await db.execute(update({{ subClassName }}), [safe_{{ subTable.business_name }}])
 
     @classmethod
     async def delete_{{ subTable.business_name }}_dao(cls, db: AsyncSession, {{ subTable.business_name }}: {{ subTable.business_name | capitalize }}Model) -> None:
diff --git a/ruoyi-fastapi-backend/module_generator/templates/python/do.py.jinja2 b/ruoyi-fastapi-backend/module_generator/templates/python/do.py.jinja2
index 13e6a7a3c..c81f3f55f 100644
--- a/ruoyi-fastapi-backend/module_generator/templates/python/do.py.jinja2
+++ b/ruoyi-fastapi-backend/module_generator/templates/python/do.py.jinja2
@@ -1,3 +1,31 @@
+{% set main_time = namespace(create=None, update=None) %}
+{% for column in columns %}
+{% if column.column_name == "create_time" and column.python_type == "datetime" %}
+{% set main_time.create = column %}
+{% elif column.column_name == "update_time" and column.python_type == "datetime" %}
+{% set main_time.update = column %}
+{% endif %}
+{% endfor %}
+{% set sub_time = namespace(create=None, update=None) %}
+{% if table.sub %}
+{% for column in subTable.columns %}
+{% if column.column_name == "create_time" and column.python_type == "datetime" %}
+{% set sub_time.create = column %}
+{% elif column.column_name == "update_time" and column.python_type == "datetime" %}
+{% set sub_time.update = column %}
+{% endif %}
+{% endfor %}
+{% endif %}
+{% set time_mixin_imports = namespace(names=[]) %}
+{% if (main_time.create and main_time.update) or (sub_time.create and sub_time.update) %}
+{% set time_mixin_imports.names = time_mixin_imports.names + ['AuditTimeMixin'] %}
+{% endif %}
+{% if (main_time.create and not main_time.update) or (sub_time.create and not sub_time.update) %}
+{% set time_mixin_imports.names = time_mixin_imports.names + ['CreateTimeMixin'] %}
+{% endif %}
+{% if (main_time.update and not main_time.create) or (sub_time.update and not sub_time.create) %}
+{% set time_mixin_imports.names = time_mixin_imports.names + ['UpdateTimeMixin'] %}
+{% endif %}
 {% for do_import in doImportList %}
 {{ do_import }}
 {% endfor %}
@@ -5,6 +33,9 @@
 from sqlalchemy.orm import relationship
 {% endif %}
 
+{% if time_mixin_imports.names %}
+from common.mixin import {{ time_mixin_imports.names | join(', ') }}
+{% endif %}
 {% if dataSourceName == defaultDataSourceName %}
 from config.database import Base
 {% else %}
@@ -15,16 +46,30 @@ DataSourceBase = get_data_source_base('{{ dataSourceName }}')
 {% endif %}
 
 
-class {{ ClassName }}({% if dataSourceName == defaultDataSourceName %}Base{% else %}DataSourceBase{% endif %}):
+class {{ ClassName }}({% if main_time.create and main_time.update %}AuditTimeMixin, {% elif main_time.create %}CreateTimeMixin, {% elif main_time.update %}UpdateTimeMixin, {% endif %}{% if dataSourceName == defaultDataSourceName %}Base{% else %}DataSourceBase{% endif %}):
     """
     {{ functionName }}表
     """
 
     __tablename__ = '{{ tableName }}'
     __table_args__ = {'comment': '{{ tableComment }}'}
+    {% if main_time.create and (main_time.create.required or main_time.create.pk) %}
+    __create_time_nullable__ = False
+    {% endif %}
+    {% if main_time.create and main_time.create.column_comment != '创建时间' %}
+    __create_time_comment__ = '{{ main_time.create.column_comment }}'
+    {% endif %}
+    {% if main_time.update and (main_time.update.required or main_time.update.pk) %}
+    __update_time_nullable__ = False
+    {% endif %}
+    {% if main_time.update and main_time.update.column_comment != '更新时间' %}
+    __update_time_comment__ = '{{ main_time.update.column_comment }}'
+    {% endif %}
 
     {% for column in columns %}
+    {% if not (column.column_name in ["create_time", "update_time"] and column.python_type == "datetime") %}
     {{ column.column_name }} = Column({{ column.column_type | get_sqlalchemy_type(dataSourceName) }}, {% if column.pk %}primary_key=True, {% endif %}{% if column.increment %}autoincrement=True, {% endif %}{% if column.required or column.pk %}nullable=False{% else %}nullable=True{% endif %}, comment='{{ column.column_comment }}')
+    {% endif %}
     {% endfor %}
 
     {% if table.sub %}
@@ -33,15 +78,29 @@ class {{ ClassName }}({% if dataSourceName == defaultDataSourceName %}Base{% els
 
 
 {% if table.sub %}
-class {{ subClassName }}({% if dataSourceName == defaultDataSourceName %}Base{% else %}DataSourceBase{% endif %}):
+class {{ subClassName }}({% if sub_time.create and sub_time.update %}AuditTimeMixin, {% elif sub_time.create %}CreateTimeMixin, {% elif sub_time.update %}UpdateTimeMixin, {% endif %}{% if dataSourceName == defaultDataSourceName %}Base{% else %}DataSourceBase{% endif %}):
     """
     {{ subTable.function_name }}表
     """
 
     __tablename__ = '{{ subTableName }}'
+    {% if sub_time.create and (sub_time.create.required or sub_time.create.pk) %}
+    __create_time_nullable__ = False
+    {% endif %}
+    {% if sub_time.create and sub_time.create.column_comment != '创建时间' %}
+    __create_time_comment__ = '{{ sub_time.create.column_comment }}'
+    {% endif %}
+    {% if sub_time.update and (sub_time.update.required or sub_time.update.pk) %}
+    __update_time_nullable__ = False
+    {% endif %}
+    {% if sub_time.update and sub_time.update.column_comment != '更新时间' %}
+    __update_time_comment__ = '{{ sub_time.update.column_comment }}'
+    {% endif %}
 
     {% for column in subTable.columns %}
+    {% if not (column.column_name in ["create_time", "update_time"] and column.python_type == "datetime") %}
     {{ column.column_name }} = Column({{ column.column_type | get_sqlalchemy_type(dataSourceName) }}, {% if column.column_name == subTableFkName %}ForeignKey('{{ tableName }}.{{ subTableFkName }}'), {% endif %}{% if column.pk %}primary_key=True, {% endif %}{% if column.increment %}autoincrement=True, {% endif %}{% if column.required or column.pk %}nullable=False{% else %}nullable=True{% endif %}, comment='{{ column.column_comment }}')
+    {% endif %}
     {% endfor %}
 
     {% if table.sub %}
diff --git a/ruoyi-fastapi-backend/plugins/ai/controller/ai_model_controller.py b/ruoyi-fastapi-backend/plugins/ai/controller/ai_model_controller.py
index d7d493598..9c1effdd2 100644
--- a/ruoyi-fastapi-backend/plugins/ai/controller/ai_model_controller.py
+++ b/ruoyi-fastapi-backend/plugins/ai/controller/ai_model_controller.py
@@ -1,4 +1,3 @@
-from datetime import datetime
 from typing import Annotated
 
 from fastapi import Path, Query, Request, Response
@@ -100,9 +99,7 @@ async def add_ai_model(
     add_ai_model.user_id = current_user.user.user_id
     add_ai_model.dept_id = current_user.user.dept_id
     add_ai_model.create_by = current_user.user.user_name
-    add_ai_model.create_time = datetime.now()
     add_ai_model.update_by = current_user.user.user_name
-    add_ai_model.update_time = datetime.now()
     add_ai_model_result = await AiModelService.add_ai_model_services(query_db, add_ai_model)
     logger.info(add_ai_model_result.message)
 
@@ -134,7 +131,6 @@ async def edit_ai_model(
     if not current_user.user.admin:
         await AiModelService.check_ai_model_data_scope_services(query_db, edit_ai_model.model_id, data_scope_sql)
     edit_ai_model.update_by = current_user.user.user_name
-    edit_ai_model.update_time = datetime.now()
     edit_ai_model_result = await AiModelService.edit_ai_model_services(query_db, edit_ai_model)
     logger.info(edit_ai_model_result.message)
 
diff --git a/ruoyi-fastapi-backend/plugins/ai/dao/ai_chat_dao.py b/ruoyi-fastapi-backend/plugins/ai/dao/ai_chat_dao.py
index 5e3bae74b..eacbf34bf 100644
--- a/ruoyi-fastapi-backend/plugins/ai/dao/ai_chat_dao.py
+++ b/ruoyi-fastapi-backend/plugins/ai/dao/ai_chat_dao.py
@@ -34,7 +34,9 @@ async def add_chat_config_dao(cls, db: AsyncSession, chat_config: AiChatConfigMo
         :param chat_config: 对话配置对象
         :return: 配置对象
         """
-        db_chat_config = AiChatConfig(**chat_config.model_dump(exclude_unset=True))
+        db_chat_config = AiChatConfig(
+            **chat_config.model_dump(exclude_unset=True, exclude={'create_time', 'update_time'})
+        )
         db.add(db_chat_config)
         await db.flush()
 
@@ -49,4 +51,7 @@ async def edit_chat_config_dao(cls, db: AsyncSession, chat_config: dict) -> None
         :param chat_config: 需要更新的对话配置字典
         :return:
         """
-        await db.execute(update(AiChatConfig), [chat_config])
+        await db.execute(
+            update(AiChatConfig),
+            [{key: value for key, value in chat_config.items() if key not in {'create_time', 'update_time'}}],
+        )
diff --git a/ruoyi-fastapi-backend/plugins/ai/dao/ai_model_dao.py b/ruoyi-fastapi-backend/plugins/ai/dao/ai_model_dao.py
index c4c0f1c66..99e296208 100644
--- a/ruoyi-fastapi-backend/plugins/ai/dao/ai_model_dao.py
+++ b/ruoyi-fastapi-backend/plugins/ai/dao/ai_model_dao.py
@@ -67,7 +67,7 @@ async def add_ai_model_dao(cls, db: AsyncSession, ai_model: AiModelModel) -> AiM
         :param ai_model: AI模型对象
         :return: AI模型信息对象
         """
-        db_model = AiModels(**ai_model.model_dump(exclude_unset=True))
+        db_model = AiModels(**ai_model.model_dump(exclude_unset=True, exclude={'create_time', 'update_time'}))
         db.add(db_model)
         await db.flush()
 
@@ -82,7 +82,10 @@ async def edit_ai_model_dao(cls, db: AsyncSession, ai_model: dict) -> None:
         :param ai_model: 需要更新的AI模型字典
         :return:
         """
-        await db.execute(update(AiModels), [ai_model])
+        await db.execute(
+            update(AiModels),
+            [{key: value for key, value in ai_model.items() if key not in {'create_time', 'update_time'}}],
+        )
 
     @classmethod
     async def delete_ai_model_dao(cls, db: AsyncSession, ai_model: AiModelModel) -> None:
diff --git a/ruoyi-fastapi-backend/plugins/ai/entity/do/ai_chat_do.py b/ruoyi-fastapi-backend/plugins/ai/entity/do/ai_chat_do.py
index a07584aa1..084e2daa1 100644
--- a/ruoyi-fastapi-backend/plugins/ai/entity/do/ai_chat_do.py
+++ b/ruoyi-fastapi-backend/plugins/ai/entity/do/ai_chat_do.py
@@ -1,11 +1,10 @@
-from datetime import datetime
-
-from sqlalchemy import CHAR, BigInteger, Column, DateTime, Float, Integer, Text
+from sqlalchemy import CHAR, BigInteger, Column, Float, Integer, Text
 
+from common.mixin import AuditTimeMixin
 from config.database import Base
 
 
-class AiChatConfig(Base):
+class AiChatConfig(AuditTimeMixin, Base):
     """
     AI对话配置表
     """
@@ -22,5 +21,3 @@ class AiChatConfig(Base):
     metrics_default_visible = Column(CHAR(1), server_default='0', comment='默认显示指标(0是, 1否)')
     vision_enabled = Column(CHAR(1), server_default='1', comment='是否开启视觉(0是, 1否)')
     image_max_size_mb = Column(Integer, nullable=True, comment='图片最大大小(MB)')
-    create_time = Column(DateTime, nullable=True, default=datetime.now, comment='创建时间')
-    update_time = Column(DateTime, nullable=True, default=datetime.now, comment='更新时间')
diff --git a/ruoyi-fastapi-backend/plugins/ai/entity/do/ai_model_do.py b/ruoyi-fastapi-backend/plugins/ai/entity/do/ai_model_do.py
index 6928d9918..87bf34221 100644
--- a/ruoyi-fastapi-backend/plugins/ai/entity/do/ai_model_do.py
+++ b/ruoyi-fastapi-backend/plugins/ai/entity/do/ai_model_do.py
@@ -1,13 +1,12 @@
-from datetime import datetime
-
-from sqlalchemy import CHAR, BigInteger, Column, DateTime, Float, Integer, String
+from sqlalchemy import CHAR, BigInteger, Column, Float, Integer, String
 
+from common.mixin import AuditTimeMixin
 from config.database import Base
 from config.env import DataBaseConfig
 from utils.common_util import SqlalchemyUtil
 
 
-class AiModels(Base):
+class AiModels(AuditTimeMixin, Base):
     """
     AI模型表
     """
@@ -51,9 +50,7 @@ class AiModels(Base):
     user_id = Column(BigInteger, nullable=True, comment='用户ID')
     dept_id = Column(BigInteger, nullable=True, comment='部门ID')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=True, default=datetime.now(), comment='创建时间')
     update_by = Column(String(64), nullable=True, server_default="''", comment='更新者')
-    update_time = Column(DateTime, nullable=True, default=datetime.now(), comment='更新时间')
     remark = Column(
         String(500),
         nullable=True,
diff --git a/ruoyi-fastapi-backend/plugins/ai/service/ai_chat_service.py b/ruoyi-fastapi-backend/plugins/ai/service/ai_chat_service.py
index bd05061fa..d4bfbf6a2 100644
--- a/ruoyi-fastapi-backend/plugins/ai/service/ai_chat_service.py
+++ b/ruoyi-fastapi-backend/plugins/ai/service/ai_chat_service.py
@@ -359,11 +359,12 @@ async def save_ai_chat_config_services(
             if chat_config:
                 if chat_config.chat_config_id != page_object.chat_config_id:
                     raise ServiceException(message='只允许修改当前用户的配置')
-                page_object.update_time = datetime.now()
-                edit_ai_chat_config = page_object.model_dump(exclude_unset=True)
+                edit_ai_chat_config = page_object.model_dump(
+                    exclude_unset=True,
+                    exclude={'create_time', 'update_time'},
+                )
                 await AiChatConfigDao.edit_chat_config_dao(query_db, edit_ai_chat_config)
             else:
-                page_object.create_time = datetime.now()
                 await AiChatConfigDao.add_chat_config_dao(query_db, page_object)
 
             await query_db.commit()
diff --git a/ruoyi-fastapi-backend/plugins/ai/service/ai_model_service.py b/ruoyi-fastapi-backend/plugins/ai/service/ai_model_service.py
index 48b32c735..a9b99fe9b 100644
--- a/ruoyi-fastapi-backend/plugins/ai/service/ai_model_service.py
+++ b/ruoyi-fastapi-backend/plugins/ai/service/ai_model_service.py
@@ -93,7 +93,7 @@ async def edit_ai_model_services(cls, query_db: AsyncSession, page_object: AiMod
         :param page_object: 编辑AI模型对象
         :return: 编辑AI模型校验结果
         """
-        edit_ai_model = page_object.model_dump(exclude_unset=True)
+        edit_ai_model = page_object.model_dump(exclude_unset=True, exclude={'create_time', 'update_time'})
         if page_object.api_key:
             if page_object.api_key == '********' * 3:
                 if 'api_key' in edit_ai_model:
diff --git a/ruoyi-fastapi-backend/plugins/core/lifecycle/jobs.py b/ruoyi-fastapi-backend/plugins/core/lifecycle/jobs.py
index 188d3dbf4..f2b336c47 100644
--- a/ruoyi-fastapi-backend/plugins/core/lifecycle/jobs.py
+++ b/ruoyi-fastapi-backend/plugins/core/lifecycle/jobs.py
@@ -1,5 +1,4 @@
 import json
-from datetime import datetime
 
 from sqlalchemy import delete, func, select, update
 from sqlalchemy.ext.asyncio import AsyncSession
@@ -253,7 +252,6 @@ async def upsert_plugin_job(self, job_model: JobModel) -> SysJob:
         :return: 写入后的系统任务对象
         """
         existing_job = await self.repository.get_job_detail_by_name_group(job_model.job_name, job_model.job_group)
-        now = datetime.now()
         if existing_job:
             ownership_prefix = f'{PluginJobModelBuilder.REMARK_PREFIX} {job_model.job_name}'
             if not str(existing_job.remark or '').startswith(ownership_prefix):
@@ -275,14 +273,11 @@ async def upsert_plugin_job(self, job_model: JobModel) -> SysJob:
                     concurrent=job_model.concurrent,
                     status=job_model.status,
                     update_by=job_model.update_by,
-                    update_time=now,
                     remark=job_model.remark,
                 )
             )
             return existing_job
 
-        job_model.create_time = now
-        job_model.update_time = now
         return await JobDao.add_job_dao(self.query_db, job_model)
 
     async def pause_plugin_jobs(self, plugin_id: str) -> None:
diff --git a/ruoyi-fastapi-backend/plugins/core/management/dao/dao.py b/ruoyi-fastapi-backend/plugins/core/management/dao/dao.py
index 65fd40f56..208924fb5 100644
--- a/ruoyi-fastapi-backend/plugins/core/management/dao/dao.py
+++ b/ruoyi-fastapi-backend/plugins/core/management/dao/dao.py
@@ -131,7 +131,10 @@ def dump_plugin_persistence_payload(plugin: PluginModel) -> dict[str, Any]:
         :param plugin: 插件信息对象
         :return: 可写入 sys_plugin 的字段字典
         """
-        return plugin.model_dump(exclude_unset=True, exclude=PLUGIN_MODEL_RUNTIME_FIELDS)
+        return plugin.model_dump(
+            exclude_unset=True,
+            exclude=PLUGIN_MODEL_RUNTIME_FIELDS | {'create_time', 'update_time'},
+        )
 
     @classmethod
     async def update_plugin(cls, db: AsyncSession, plugin: dict) -> None:
@@ -142,7 +145,10 @@ async def update_plugin(cls, db: AsyncSession, plugin: dict) -> None:
         :param plugin: 插件更新字典
         :return: None
         """
-        await db.execute(update(SysPlugin), [plugin])
+        await db.execute(
+            update(SysPlugin),
+            [{key: value for key, value in plugin.items() if key not in {'create_time', 'update_time'}}],
+        )
 
     @classmethod
     async def delete_plugin(cls, db: AsyncSession, plugin_id: str) -> None:
@@ -221,7 +227,7 @@ async def add_plugin_menu(cls, db: AsyncSession, plugin_menu: PluginMenuModel) -
         :param plugin_menu: 插件菜单关联对象
         :return: 新增后的插件菜单关联对象
         """
-        db_plugin_menu = SysPluginMenu(**plugin_menu.model_dump(exclude_unset=True))
+        db_plugin_menu = SysPluginMenu(**plugin_menu.model_dump(exclude_unset=True, exclude={'create_time'}))
         db.add(db_plugin_menu)
         await db.flush()
 
@@ -422,7 +428,7 @@ async def update_plugin_migration_status(
                 SysPluginMigration.plugin_id == plugin_id,
                 SysPluginMigration.migration_path == migration_path,
             )
-            .values(status=status, error_message=error_message, finished_time=now, update_time=now)
+            .values(status=status, error_message=error_message, finished_time=now)
         )
         await db.flush()
 
@@ -485,7 +491,12 @@ def _apply_migration_observability_payload(
         :return: None
         """
         status = payload.get('status', 'success')
-        payload.setdefault('update_time', now)
+        if existing_plugin_migration is None:
+            # migration records have no INSERT default; keep one snapshot on first write.
+            payload['update_time'] = now
+        else:
+            # UPDATE statements use the mapped onupdate callback.  Ignore client/audit input.
+            payload.pop('update_time', None)
         if status == 'running':
             payload.setdefault('started_time', now)
             payload.setdefault('finished_time', None)
@@ -592,7 +603,9 @@ async def add_plugin_config(cls, db: AsyncSession, plugin_config: PluginConfigMo
         :param plugin_config: 插件配置对象
         :return: 新增后的插件配置对象
         """
-        db_plugin_config = SysPluginConfig(**plugin_config.model_dump(exclude_unset=True))
+        db_plugin_config = SysPluginConfig(
+            **plugin_config.model_dump(exclude_unset=True, exclude={'create_time', 'update_time'})
+        )
         db.add(db_plugin_config)
         await db.flush()
 
@@ -607,7 +620,10 @@ async def update_plugin_config(cls, db: AsyncSession, plugin_config: dict) -> No
         :param plugin_config: 插件配置更新字典
         :return: None
         """
-        await db.execute(update(SysPluginConfig), [plugin_config])
+        await db.execute(
+            update(SysPluginConfig),
+            [{key: value for key, value in plugin_config.items() if key not in {'create_time', 'update_time'}}],
+        )
 
     @classmethod
     async def add_plugin_operation_log(
@@ -622,7 +638,9 @@ async def add_plugin_operation_log(
         :param operation_log: 插件批量操作审计日志对象
         :return: 新增后的插件批量操作审计日志对象
         """
-        db_operation_log = SysPluginOperationLog(**operation_log.model_dump(exclude_unset=True))
+        db_operation_log = SysPluginOperationLog(
+            **operation_log.model_dump(exclude_unset=True, exclude={'create_time'})
+        )
         db.add(db_operation_log)
         await db.flush()
 
@@ -915,7 +933,7 @@ async def add_sys_menu(cls, db: AsyncSession, menu: MenuModel) -> SysMenu:
         :param menu: 菜单对象
         :return: 新增后的系统菜单对象
         """
-        db_menu = SysMenu(**menu.model_dump(exclude_unset=True))
+        db_menu = SysMenu(**menu.model_dump(exclude_unset=True, exclude={'create_time', 'update_time'}))
         db.add(db_menu)
         await db.flush()
 
@@ -930,7 +948,10 @@ async def update_sys_menu(cls, db: AsyncSession, menu: dict) -> None:
         :param menu: 菜单更新字典
         :return: None
         """
-        await db.execute(update(SysMenu), [menu])
+        await db.execute(
+            update(SysMenu),
+            [{key: value for key, value in menu.items() if key not in {'create_time', 'update_time'}}],
+        )
 
     @classmethod
     async def update_sys_menu_status_by_ids(cls, db: AsyncSession, menu_ids: list[int], status: str) -> None:
diff --git a/ruoyi-fastapi-backend/plugins/core/management/entity/do/models.py b/ruoyi-fastapi-backend/plugins/core/management/entity/do/models.py
index b0f204698..f60e7d5a9 100644
--- a/ruoyi-fastapi-backend/plugins/core/management/entity/do/models.py
+++ b/ruoyi-fastapi-backend/plugins/core/management/entity/do/models.py
@@ -1,13 +1,12 @@
-from datetime import datetime
-
 from sqlalchemy import CHAR, BigInteger, CheckConstraint, Column, DateTime, Integer, String, Text, UniqueConstraint
 
+from common.mixin import AuditTimeMixin, CreateTimeMixin
 from config.database import Base
 from config.env import DataBaseConfig
 from utils.common_util import SqlalchemyUtil
 
 
-class SysPlugin(Base):
+class SysPlugin(AuditTimeMixin, Base):
     """
     插件信息表。
 
@@ -36,15 +35,7 @@ class SysPlugin(Base):
     last_error = Column(String(1000), nullable=True, comment='最近一次错误信息')
     description = Column(String(500), nullable=True, comment='插件说明')
     create_by = Column(String(64), nullable=True, server_default="''", comment='创建者')
-    create_time = Column(DateTime, nullable=True, default=datetime.now, comment='创建时间')
     update_by = Column(String(64), nullable=True, server_default="''", comment='更新者')
-    update_time = Column(
-        DateTime,
-        nullable=True,
-        default=datetime.now,
-        onupdate=datetime.now,
-        comment='更新时间',
-    )
     remark = Column(
         String(500),
         nullable=True,
@@ -53,7 +44,7 @@ class SysPlugin(Base):
     )
 
 
-class SysPluginMenu(Base):
+class SysPluginMenu(CreateTimeMixin, Base):
     """
     插件和菜单关联表。
 
@@ -69,10 +60,9 @@ class SysPluginMenu(Base):
     plugin_id = Column(String(64), primary_key=True, nullable=False, comment='插件ID')
     menu_id = Column(BigInteger, primary_key=True, nullable=False, comment='菜单ID')
     menu_key = Column(String(255), nullable=False, comment='插件内菜单自然键')
-    create_time = Column(DateTime, nullable=True, default=datetime.now, comment='创建时间')
 
 
-class SysPluginMigration(Base):
+class SysPluginMigration(AuditTimeMixin, Base):
     """
     插件 migration 执行历史表。
 
@@ -80,6 +70,8 @@ class SysPluginMigration(Base):
     """
 
     __tablename__ = 'sys_plugin_migration'
+    __create_time_comment__ = '执行时间'
+    __update_time_insert_default__ = False
     __table_args__ = {'comment': '插件 migration 执行历史表'}
 
     plugin_id = Column(String(64), primary_key=True, nullable=False, comment='插件ID')
@@ -92,11 +84,9 @@ class SysPluginMigration(Base):
     attempt_count = Column(Integer, nullable=False, default=0, comment='尝试次数')
     started_time = Column(DateTime, nullable=True, comment='最近开始时间')
     finished_time = Column(DateTime, nullable=True, comment='最近结束时间')
-    create_time = Column(DateTime, nullable=True, default=datetime.now, comment='执行时间')
-    update_time = Column(DateTime, nullable=True, onupdate=datetime.now, comment='更新时间')
 
 
-class SysPluginConfig(Base):
+class SysPluginConfig(AuditTimeMixin, Base):
     """
     插件配置表。
 
@@ -116,17 +106,9 @@ class SysPluginConfig(Base):
     secret = Column(CHAR(1), nullable=False, server_default='1', comment='是否敏感（0是 1否）')
     options = Column(Text, nullable=True, comment='配置选项JSON')
     description = Column(String(500), nullable=True, comment='配置说明')
-    create_time = Column(DateTime, nullable=True, default=datetime.now, comment='创建时间')
-    update_time = Column(
-        DateTime,
-        nullable=True,
-        default=datetime.now,
-        onupdate=datetime.now,
-        comment='更新时间',
-    )
 
 
-class SysPluginOperationLog(Base):
+class SysPluginOperationLog(CreateTimeMixin, Base):
     """
     插件批量操作审计日志表。
 
@@ -150,7 +132,6 @@ class SysPluginOperationLog(Base):
     status = Column(String(32), nullable=False, comment='执行状态')
     summary = Column(Text, nullable=True, comment='执行汇总JSON')
     result = Column(Text, nullable=True, comment='完整执行结果JSON')
-    create_time = Column(DateTime, nullable=True, default=datetime.now, comment='创建时间')
     remark = Column(
         String(500),
         nullable=True,
diff --git a/ruoyi-fastapi-backend/plugins/core/management/service/menus.py b/ruoyi-fastapi-backend/plugins/core/management/service/menus.py
index aeb3cf5ef..c74b64fc9 100644
--- a/ruoyi-fastapi-backend/plugins/core/management/service/menus.py
+++ b/ruoyi-fastapi-backend/plugins/core/management/service/menus.py
@@ -1,5 +1,3 @@
-from datetime import datetime
-
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from module_admin.entity.do.menu_do import SysMenu
@@ -349,7 +347,6 @@ def _build_menu_model(
             status=menu.status,
             perms=menu.perms or None,
             icon=menu.icon,
-            updateTime=datetime.now(),
             remark=menu_remark,
         )
 
diff --git a/ruoyi-fastapi-backend/plugins/core/management/service/service.py b/ruoyi-fastapi-backend/plugins/core/management/service/service.py
index e44f6cf92..ed6541b6c 100644
--- a/ruoyi-fastapi-backend/plugins/core/management/service/service.py
+++ b/ruoyi-fastapi-backend/plugins/core/management/service/service.py
@@ -193,7 +193,6 @@ async def update_plugin_enabled_services(
             'plugin_id': plugin_id,
             'enabled': enabled_value,
             'status': status,
-            'update_time': datetime.now(),
         }
         if enabled:
             update_payload['last_error'] = None
@@ -230,9 +229,12 @@ async def mark_plugin_installed_services(
             'installed_version': manifest.version,
             'status': status,
             'last_error': None,
-            'update_time': datetime.now(),
         }
         await PluginDao.update_plugin(query_db, update_payload)
+        if plugin is not None:
+            await query_db.refresh(plugin)
+        else:
+            plugin = await PluginDao.get_plugin_by_id(query_db, manifest.id)
 
         return PluginModel(
             pluginId=manifest.id,
@@ -244,7 +246,7 @@ async def mark_plugin_installed_services(
             source='local',
             backendPath=str(discovered_plugin.backend_path),
             description=manifest.description,
-            updateTime=update_payload['update_time'],
+            updateTime=getattr(plugin, 'update_time', None),
         )
 
     @classmethod
@@ -270,7 +272,6 @@ async def mark_plugin_uninstalled_services(cls, query_db: AsyncSession, plugin_i
             'enabled': '1',
             'status': 'discovered',
             'last_error': None,
-            'update_time': datetime.now(),
         }
         await PluginDao.update_plugin(query_db, update_payload)
         await PluginDao.delete_plugin_menus(query_db, plugin_id)
@@ -335,7 +336,6 @@ async def install_plugin_default_config_services(
                         'secret': config_model.secret,
                         'options': config_model.options,
                         'description': config_model.description,
-                        'update_time': datetime.now(),
                     },
                 )
             else:
@@ -433,7 +433,6 @@ async def update_plugin_config_services(
                     'plugin_id': discovered_plugin.manifest.id,
                     'config_key': key,
                     'config_value': PluginConfigManager.serialize_config_value(value, secret=item.secret),
-                    'update_time': datetime.now(),
                 },
             )
 
@@ -646,7 +645,6 @@ async def mark_plugin_error_services(
                 'status': PluginStateTransitionTable.resolve_target(getattr(plugin, 'status', None), 'mark_error')
                 or 'error',
                 'last_error': error_message[:1000],
-                'update_time': datetime.now(),
             },
         )
         await PluginMenuInstaller(query_db).set_plugin_menu_status(plugin_id, '1')
@@ -703,7 +701,6 @@ async def recover_plugin_dependency_error_services(
                 'plugin_id': plugin_id,
                 'status': target_status,
                 'last_error': None,
-                'update_time': datetime.now(),
             },
         )
 
diff --git a/ruoyi-fastapi-backend/tests/module_generator/dao/test_gen_dao.py b/ruoyi-fastapi-backend/tests/module_generator/dao/test_gen_dao.py
index f21c29b6c..1c001a8e4 100644
--- a/ruoyi-fastapi-backend/tests/module_generator/dao/test_gen_dao.py
+++ b/ruoyi-fastapi-backend/tests/module_generator/dao/test_gen_dao.py
@@ -1,12 +1,17 @@
+from datetime import datetime
 from types import SimpleNamespace
 from unittest.mock import AsyncMock, MagicMock, patch
 
 import pytest
 
-from module_generator.dao.gen_dao import GenTableDao
+from module_generator.dao.gen_dao import GenTableColumnDao, GenTableDao
 from module_generator.entity.vo.gen_vo import GenTablePageQueryModel
 from utils.page_util import PageUtil
 
+TABLE_ID = 7
+COLUMN_ID = 9
+CLIENT_AUDIT_TIME = datetime(2000, 1, 1)
+
 
 @pytest.mark.asyncio
 async def test_get_gen_table_by_name_is_scoped_to_data_source() -> None:
@@ -85,3 +90,37 @@ async def test_get_gen_db_table_list_uses_target_source_config() -> None:
     query = paginate.await_args.args[1]
     assert 'list_table' in str(query.compile())
     assert query.compile().params['excluded_table_names'] == ('sys_user',)
+
+
+@pytest.mark.asyncio
+async def test_edit_gen_table_keeps_alias_fields_while_excluding_audit_times() -> None:
+    db = MagicMock()
+    db.execute = AsyncMock()
+
+    await GenTableDao.edit_gen_table_dao(
+        db,
+        {'tableId': TABLE_ID, 'tableName': 'orders', 'updateTime': CLIENT_AUDIT_TIME},
+    )
+
+    params = db.execute.await_args.args[1][0]
+    assert params['table_id'] == TABLE_ID
+    assert params['table_name'] == 'orders'
+    assert 'create_time' not in params
+    assert 'update_time' not in params
+
+
+@pytest.mark.asyncio
+async def test_edit_gen_table_column_keeps_alias_fields_while_excluding_audit_times() -> None:
+    db = MagicMock()
+    db.execute = AsyncMock()
+
+    await GenTableColumnDao.edit_gen_table_column_dao(
+        db,
+        {'columnId': COLUMN_ID, 'columnName': 'order_id', 'updateTime': CLIENT_AUDIT_TIME},
+    )
+
+    params = db.execute.await_args.args[1][0]
+    assert params['column_id'] == COLUMN_ID
+    assert params['column_name'] == 'order_id'
+    assert 'create_time' not in params
+    assert 'update_time' not in params
diff --git a/ruoyi-fastapi-backend/tests/module_generator/test_gen_service.py b/ruoyi-fastapi-backend/tests/module_generator/test_gen_service.py
index b7914b497..ea1c55ecc 100644
--- a/ruoyi-fastapi-backend/tests/module_generator/test_gen_service.py
+++ b/ruoyi-fastapi-backend/tests/module_generator/test_gen_service.py
@@ -7,6 +7,7 @@
 from sqlalchemy import create_engine, text
 
 from exceptions.exception import ServiceException
+from module_generator.entity.vo.gen_vo import EditGenTableModel, GenTableColumnModel
 from module_generator.service.gen_service import GenTableService
 
 
@@ -76,3 +77,45 @@ async def test_batch_gen_code_services_rejects_tables_from_other_sources() -> No
 
     assert exc_info.value.message == '业务表不存在或不属于数据源 reporting：report_order'
     init_jinja2.assert_not_called()
+
+
+@pytest.mark.asyncio
+async def test_edit_gen_table_services_preserves_alias_fields_for_both_daos() -> None:
+    table_id = 7
+    column_id = 9
+    page_object = EditGenTableModel(
+        tableId=table_id,
+        tableName='orders',
+        updateBy='admin',
+        columns=[GenTableColumnModel(columnId=column_id, columnName='order_id')],
+    )
+    query_db = SimpleNamespace(commit=AsyncMock(), rollback=AsyncMock())
+    table_info = SimpleNamespace(table_id=table_id, data_source_name='primary')
+
+    with (
+        patch.object(
+            GenTableService,
+            'get_gen_table_by_id_services',
+            new=AsyncMock(return_value=table_info),
+        ),
+        patch(
+            'module_generator.service.gen_service.GenTableDao.edit_gen_table_dao',
+            new=AsyncMock(),
+        ) as edit_table,
+        patch(
+            'module_generator.service.gen_service.GenTableColumnDao.edit_gen_table_column_dao',
+            new=AsyncMock(),
+        ) as edit_column,
+    ):
+        await GenTableService.edit_gen_table_services(query_db, page_object)
+
+    table_payload = edit_table.await_args.args[1]
+    column_payload = edit_column.await_args.args[1]
+    assert table_payload['tableId'] == table_id
+    assert table_payload['tableName'] == 'orders'
+    assert column_payload['columnId'] == column_id
+    assert column_payload['columnName'] == 'order_id'
+    assert 'createTime' not in table_payload
+    assert 'updateTime' not in table_payload
+    assert 'createTime' not in column_payload
+    assert 'updateTime' not in column_payload
diff --git a/ruoyi-fastapi-backend/tests/plugins/core/management/test_plugin_state.py b/ruoyi-fastapi-backend/tests/plugins/core/management/test_plugin_state.py
index 887c6534e..938297cdc 100644
--- a/ruoyi-fastapi-backend/tests/plugins/core/management/test_plugin_state.py
+++ b/ruoyi-fastapi-backend/tests/plugins/core/management/test_plugin_state.py
@@ -484,9 +484,11 @@ async def test_mark_plugin_installed_updates_installed_version(tmp_path: Path) -
 
         assert plugin.installed_version == '1.0.0'
         assert plugin.status == 'installed'
+        assert plugin.update_time is not None
         assert db_plugin is not None
         assert db_plugin.installed_version == '1.0.0'
         assert db_plugin.status == 'installed'
+        assert plugin.update_time == db_plugin.update_time
     finally:
         await engine.dispose()
 
diff --git a/ruoyi-fastapi-backend/tests/test_audit_time_delegation.py b/ruoyi-fastapi-backend/tests/test_audit_time_delegation.py
new file mode 100644
index 000000000..a1b8c1712
--- /dev/null
+++ b/ruoyi-fastapi-backend/tests/test_audit_time_delegation.py
@@ -0,0 +1,35 @@
+from datetime import datetime
+
+from plugins.core.management.dao.dao import PluginDao
+from plugins.core.management.entity.do.models import SysPluginMigration
+from plugins.core.management.entity.vo.schemas import PluginMigrationModel, PluginModel
+
+
+def test_plugin_persistence_payload_ignores_client_audit_times() -> None:
+    now = datetime(2026, 8, 21, 12, 0, 0)
+    payload = PluginDao.dump_plugin_persistence_payload(
+        PluginModel(
+            pluginId='demo',
+            pluginName='Demo',
+            version='1.0.0',
+            createTime=now,
+            updateTime=now,
+        )
+    )
+
+    assert 'create_time' not in payload
+    assert 'update_time' not in payload
+
+
+def test_existing_migration_update_uses_onupdate_not_external_time() -> None:
+    now = datetime(2026, 8, 21, 12, 0, 0)
+    payload = PluginMigrationModel(
+        pluginId='demo',
+        migrationPath='migrations/001.sql',
+        migrationChecksum='checksum',
+        updateTime=datetime(2000, 1, 1),
+    ).model_dump(exclude_unset=True)
+
+    PluginDao._apply_migration_observability_payload(payload, SysPluginMigration(), now)
+
+    assert 'update_time' not in payload
diff --git a/ruoyi-fastapi-backend/tests/test_entity_time_columns.py b/ruoyi-fastapi-backend/tests/test_entity_time_columns.py
new file mode 100644
index 000000000..5cbefd0ea
--- /dev/null
+++ b/ruoyi-fastapi-backend/tests/test_entity_time_columns.py
@@ -0,0 +1,228 @@
+"""契约测试：实体 DO 的时间列必须使用 SQLAlchemy callable defaults。"""
+
+import asyncio
+
+import pytest
+from sqlalchemy import DateTime, update
+from sqlalchemy.ext.asyncio import async_sessionmaker, create_async_engine
+
+from common.mixin import AuditTimeMixin, CreateTimeMixin
+from config.database import Base
+from module_admin.entity.do.config_do import SysConfig
+from module_admin.entity.do.dept_do import SysDept
+from module_admin.entity.do.dict_do import SysDictData, SysDictType
+from module_admin.entity.do.file_do import (
+    SysFileAccessLog,
+    SysFileAcl,
+    SysFileInfo,
+    SysFileReconcileIssue,
+    SysFileReconcileRun,
+    SysFileReference,
+    SysFileRetentionNotice,
+    SysFileRetentionPolicy,
+)
+from module_admin.entity.do.job_do import SysJob, SysJobLog
+from module_admin.entity.do.log_do import SysLogininfor, SysOperLog
+from module_admin.entity.do.menu_do import SysMenu
+from module_admin.entity.do.notice_do import SysNotice, SysNoticeRead
+from module_admin.entity.do.post_do import SysPost
+from module_admin.entity.do.role_do import SysRole, SysRoleDept, SysRoleMenu
+from module_admin.entity.do.user_do import SysUser, SysUserPost, SysUserRole
+from module_generator.entity.do.gen_do import GenTable, GenTableColumn
+from plugins.ai.entity.do.ai_chat_do import AiChatConfig
+from plugins.ai.entity.do.ai_model_do import AiModels
+from plugins.core.management.entity.do.models import (
+    SysPlugin,
+    SysPluginConfig,
+    SysPluginMenu,
+    SysPluginMigration,
+    SysPluginOperationLog,
+)
+
+EXPECTED_ENTITY_MODEL_COUNT = 35
+EXPECTED_UPDATE_TIME_MODEL_COUNT = 19
+EXPECTED_CREATE_TIME_ONLY_MODEL_COUNT = 6
+
+# Keep both inventories explicit: there are 35 DO classes and 19 update_time
+# columns. Adding/removing one should be an intentional model change.
+ENTITY_MODELS = (
+    SysConfig,
+    SysDept,
+    SysDictType,
+    SysDictData,
+    SysFileInfo,
+    SysFileReference,
+    SysFileRetentionPolicy,
+    SysFileRetentionNotice,
+    SysFileAcl,
+    SysFileAccessLog,
+    SysFileReconcileRun,
+    SysFileReconcileIssue,
+    SysJob,
+    SysJobLog,
+    SysLogininfor,
+    SysOperLog,
+    SysMenu,
+    SysNotice,
+    SysNoticeRead,
+    SysPost,
+    SysRole,
+    SysRoleDept,
+    SysRoleMenu,
+    SysUser,
+    SysUserRole,
+    SysUserPost,
+    GenTable,
+    GenTableColumn,
+    AiChatConfig,
+    AiModels,
+    SysPlugin,
+    SysPluginMenu,
+    SysPluginMigration,
+    SysPluginConfig,
+    SysPluginOperationLog,
+)
+
+UPDATE_TIME_MODELS = (
+    SysConfig,
+    SysDept,
+    SysDictType,
+    SysDictData,
+    SysFileInfo,
+    SysFileRetentionPolicy,
+    SysJob,
+    SysMenu,
+    SysNotice,
+    SysPost,
+    SysRole,
+    SysUser,
+    GenTable,
+    GenTableColumn,
+    AiChatConfig,
+    AiModels,
+    SysPlugin,
+    SysPluginMigration,
+    SysPluginConfig,
+)
+
+CREATE_TIME_ONLY_MODELS = (
+    SysFileReference,
+    SysFileRetentionNotice,
+    SysFileAcl,
+    SysJobLog,
+    SysPluginMenu,
+    SysPluginOperationLog,
+)
+
+REQUIRED_CREATE_TIME_MODELS = {
+    SysFileInfo,
+    SysFileReference,
+    SysFileRetentionPolicy,
+    SysFileRetentionNotice,
+    SysFileAcl,
+}
+
+REQUIRED_UPDATE_TIME_MODELS = {
+    SysFileInfo,
+    SysFileRetentionPolicy,
+}
+
+
+def _column_default(model: type, field_name: str, attribute: str) -> object | None:
+    column = model.__table__.c[field_name]
+    value = getattr(column, attribute)
+    return None if value is None else value.arg
+
+
+def test_audit_time_columns_are_provided_by_mixins_without_changing_contracts() -> None:
+    """审计字段统一由Mixin声明，并保留非空、注释及特殊默认值语义。"""
+    assert len(UPDATE_TIME_MODELS) == EXPECTED_UPDATE_TIME_MODEL_COUNT
+    assert len(CREATE_TIME_ONLY_MODELS) == EXPECTED_CREATE_TIME_ONLY_MODEL_COUNT
+
+    for model in UPDATE_TIME_MODELS:
+        assert issubclass(model, AuditTimeMixin)
+        assert model.__table__.c.create_time.nullable is (model not in REQUIRED_CREATE_TIME_MODELS)
+        assert model.__table__.c.update_time.nullable is (model not in REQUIRED_UPDATE_TIME_MODELS)
+        assert model.__table__.c.create_time.server_default is None
+        assert model.__table__.c.update_time.server_default is None
+
+    for model in CREATE_TIME_ONLY_MODELS:
+        assert issubclass(model, CreateTimeMixin)
+        assert model.__table__.c.create_time.nullable is (model not in REQUIRED_CREATE_TIME_MODELS)
+        assert model.__table__.c.create_time.server_default is None
+
+    assert SysPluginMigration.__table__.c.create_time.comment == '执行时间'
+
+
+def test_all_update_time_columns_use_callable_defaults_and_onupdate() -> None:
+    """每个 update_time 都在每次插入/更新时求值，而非导入时冻结时间。"""
+    assert len(UPDATE_TIME_MODELS) == EXPECTED_UPDATE_TIME_MODEL_COUNT
+
+    for model in UPDATE_TIME_MODELS:
+        onupdate = _column_default(model, 'update_time', 'onupdate')
+        assert callable(onupdate)
+        assert getattr(onupdate, '__name__', None) == 'now'
+
+        if model is SysPluginMigration:
+            # Migration history rows are created with an explicit timestamp;
+            # preserve that special semantic while still tracking updates.
+            assert _column_default(model, 'update_time', 'default') is None
+        else:
+            default = _column_default(model, 'update_time', 'default')
+            assert callable(default)
+            assert getattr(default, '__name__', None) == 'now'
+
+
+def test_all_create_time_defaults_are_callable() -> None:
+    """所有使用 datetime.now 默认值的 DateTime 列都必须传入 callable。"""
+    assert len(ENTITY_MODELS) == EXPECTED_ENTITY_MODEL_COUNT
+
+    for model in ENTITY_MODELS:
+        for column in model.__table__.columns:
+            if isinstance(column.type, DateTime) and column.default is not None:
+                default = column.default.arg
+                assert callable(default), f'{model.__name__}.{column.name}'
+                assert getattr(default, '__name__', None) == 'now', f'{model.__name__}.{column.name}'
+
+
+@pytest.mark.asyncio
+async def test_core_model_time_defaults_are_evaluated_per_insert_and_core_update() -> None:
+    """SQLite 行为契约：INSERT 默认值和 Core UPDATE onupdate 都重新求值。"""
+    engine = create_async_engine('sqlite+aiosqlite:///:memory:')
+    session_maker = async_sessionmaker(bind=engine, expire_on_commit=False)
+
+    try:
+        async with engine.begin() as connection:
+            await connection.run_sync(Base.metadata.create_all, tables=[SysPlugin.__table__])
+
+        async with session_maker() as session:
+            first = SysPlugin(plugin_id='time-first', plugin_name='First', version='1.0.0')
+            second = SysPlugin(plugin_id='time-second', plugin_name='Second', version='1.0.0')
+            session.add(first)
+            await session.flush()
+            first_create_time = first.create_time
+            first_update_time = first.update_time
+
+            await asyncio.sleep(0.001)
+            session.add(second)
+            await session.flush()
+            assert second.create_time != first_create_time
+            assert second.update_time != first_update_time
+            second_update_time = second.update_time
+
+            await asyncio.sleep(0.001)
+            await session.execute(
+                update(SysPlugin).where(SysPlugin.plugin_id == first.plugin_id).values(version='1.1.0')
+            )
+            await session.refresh(first)
+            assert first.update_time > first_update_time
+
+            await asyncio.sleep(0.001)
+            await session.execute(
+                update(SysPlugin),
+                [{'plugin_id': second.plugin_id, 'version': '1.1.0'}],
+            )
+            await session.refresh(second)
+            assert second.update_time > second_update_time
+    finally:
+        await engine.dispose()
diff --git a/ruoyi-fastapi-backend/tests/utils/test_template_util.py b/ruoyi-fastapi-backend/tests/utils/test_template_util.py
index 0126b25c0..87cac7937 100644
--- a/ruoyi-fastapi-backend/tests/utils/test_template_util.py
+++ b/ruoyi-fastapi-backend/tests/utils/test_template_util.py
@@ -8,6 +8,8 @@
 from module_generator.service.gen_service import GenTableService
 from utils.template_util import TemplateInitializer, TemplateUtils
 
+MAX_GENERATED_LINE_LENGTH = 120
+
 
 def _gen_table(
     *,
@@ -176,7 +178,172 @@ def test_secondary_source_templates_use_named_dependency_and_isolated_metadata(
     assert "DataSourceBase = get_data_source_base('reporting')" in entity
     assert 'class GenItem(DataSourceBase):' in entity
     assert 'from config.database import Base' not in entity
+    assert 'from datetime import datetime' not in entity
+    assert 'from common.mixin import' not in entity
     compile(entity, '<generated-entity>', 'exec')
+    dao = env.get_template('python/dao.py.jinja2').render(**context)
+    assert 'if key not in set()' in dao
+    compile(dao, '<generated-dao>', 'exec')
+    compile(controller, '<generated-controller>', 'exec')
+
+
+def test_python_templates_handle_audit_timestamps_by_exact_column_name() -> None:
+    columns = [
+        GenTableColumnModel(
+            columnName='item_id',
+            columnComment='编号',
+            columnType='bigint',
+            pythonType='int',
+            pythonField='itemId',
+            isPk='1',
+            isInsert='1',
+        ),
+        GenTableColumnModel(
+            columnName='create_by',
+            columnComment='创建者',
+            columnType='varchar(64)',
+            pythonType='str',
+            pythonField='createBy',
+            isInsert='1',
+            isEdit='0',
+        ),
+        GenTableColumnModel(
+            columnName='update_by',
+            columnComment='更新者',
+            columnType='varchar(64)',
+            pythonType='str',
+            pythonField='updateBy',
+            isInsert='1',
+            isEdit='1',
+        ),
+        GenTableColumnModel(
+            columnName='create_time',
+            columnComment='创建时间',
+            columnType='datetime',
+            pythonType='datetime',
+            pythonField='createTime',
+            isInsert='1',
+            isEdit='0',
+        ),
+        GenTableColumnModel(
+            columnName='update_time',
+            columnComment='更新时间',
+            columnType='datetime',
+            pythonType='datetime',
+            pythonField='updateTime',
+            isInsert='1',
+            isEdit='1',
+        ),
+        GenTableColumnModel(
+            columnName='created_time',
+            columnComment='其他时间',
+            columnType='datetime',
+            pythonType='datetime',
+            pythonField='createdTime',
+            isInsert='1',
+            isEdit='1',
+        ),
+    ]
+    gen_table = _gen_table(gen_view=False)
+    gen_table.columns = columns
+    gen_table.pk_column = columns[0]
+
+    context = TemplateUtils.prepare_context(gen_table)
+    env = TemplateInitializer.init_jinja2()
+    entity = env.get_template('python/do.py.jinja2').render(**context)
+    dao = env.get_template('python/dao.py.jinja2').render(**context)
+    controller = env.get_template('python/controller.py.jinja2').render(**context)
+
+    assert 'from datetime import datetime' not in entity
+    assert 'from common.mixin import AuditTimeMixin' in entity
+    assert 'class GenItem(AuditTimeMixin, Base):' in entity
+    assert 'create_time = Column(' not in entity
+    assert 'update_time = Column(' not in entity
+    assert 'created_time = Column(DateTime, nullable=True, comment=' in entity
+    assert "model_dump(exclude={'create_time', 'update_time'})" in dao
+    assert "if key not in {'create_time', 'update_time'}" in dao
+    assert 'create_time = datetime.now()' not in controller
+    assert 'update_time = datetime.now()' not in controller
+    assert 'create_by = current_user.user.user_name' in controller
+    assert 'update_by = current_user.user.user_name' in controller
+    compile(entity, '<generated-audit-entity>', 'exec')
+    compile(dao, '<generated-audit-dao>', 'exec')
+    compile(controller, '<generated-audit-controller>', 'exec')
+    assert entity.index('from sqlalchemy import') < entity.index('from common.mixin import AuditTimeMixin')
+    assert all(len(line) <= MAX_GENERATED_LINE_LENGTH for line in entity.splitlines())
+    assert all(len(line) <= MAX_GENERATED_LINE_LENGTH for line in dao.splitlines())
+    assert all(len(line) <= MAX_GENERATED_LINE_LENGTH for line in controller.splitlines())
+
+
+def test_dao_audit_filter_uses_a_set_for_a_single_timestamp() -> None:
+    columns = [
+        GenTableColumnModel(
+            columnName='item_id',
+            columnComment='编号',
+            columnType='bigint',
+            pythonType='int',
+            pythonField='itemId',
+            isPk='1',
+            isInsert='1',
+        ),
+        GenTableColumnModel(
+            columnName='create_time',
+            columnComment='创建时间',
+            columnType='datetime',
+            pythonType='datetime',
+            pythonField='createTime',
+            isInsert='1',
+        ),
+    ]
+    gen_table = _gen_table(gen_view=False)
+    gen_table.columns = columns
+    gen_table.pk_column = columns[0]
+
+    context = TemplateUtils.prepare_context(gen_table)
+    env = TemplateInitializer.init_jinja2()
+    entity = env.get_template('python/do.py.jinja2').render(**context)
+    dao = env.get_template('python/dao.py.jinja2').render(**context)
+
+    assert 'from common.mixin import CreateTimeMixin' in entity
+    assert 'class GenItem(CreateTimeMixin, Base):' in entity
+    assert 'create_time = Column(' not in entity
+    assert "if key not in {'create_time'}" in dao
+    compile(entity, '<generated-single-audit-entity>', 'exec')
+    compile(dao, '<generated-single-audit-dao>', 'exec')
+
+
+def test_do_template_supports_required_update_time_only_mixin() -> None:
+    columns = [
+        GenTableColumnModel(
+            columnName='item_id',
+            columnComment='编号',
+            columnType='bigint',
+            pythonType='int',
+            pythonField='itemId',
+            isPk='1',
+        ),
+        GenTableColumnModel(
+            columnName='update_time',
+            columnComment='最后修改时间',
+            columnType='datetime',
+            pythonType='datetime',
+            pythonField='updateTime',
+            isRequired='1',
+        ),
+    ]
+    gen_table = _gen_table(gen_view=False)
+    gen_table.columns = columns
+    gen_table.pk_column = columns[0]
+
+    context = TemplateUtils.prepare_context(gen_table)
+    entity = TemplateInitializer.init_jinja2().get_template('python/do.py.jinja2').render(**context)
+
+    assert 'from common.mixin import UpdateTimeMixin' in entity
+    assert 'class GenItem(UpdateTimeMixin, Base):' in entity
+    assert '__update_time_nullable__ = False' in entity
+    assert "__update_time_comment__ = '最后修改时间'" in entity
+    assert 'DateTime' not in entity
+    compile(entity, '<generated-update-audit-entity>', 'exec')
 
 
 def test_sub_table_entity_template_uses_required_nullable_semantics() -> None:
@@ -204,14 +371,43 @@ def test_sub_table_entity_template_uses_required_nullable_semantics() -> None:
                 pythonField='optionalValue',
                 isRequired='0',
             ),
+            GenTableColumnModel(
+                columnName='create_time',
+                columnComment='创建时间',
+                columnType='datetime',
+                pythonType='datetime',
+                pythonField='createTime',
+                isRequired='1',
+            ),
+            GenTableColumnModel(
+                columnName='update_time',
+                columnComment='更新时间',
+                columnType='datetime',
+                pythonType='datetime',
+                pythonField='updateTime',
+            ),
         ],
+        businessName='itemDetail',
+        functionName='生成测试明细',
     )
+    gen_table.sub_table.pk_column = gen_table.sub_table.columns[0]
 
     context = TemplateUtils.prepare_context(gen_table)
-    entity = TemplateInitializer.init_jinja2().get_template('python/do.py.jinja2').render(**context)
+    env = TemplateInitializer.init_jinja2()
+    entity = env.get_template('python/do.py.jinja2').render(**context)
+    dao = env.get_template('python/dao.py.jinja2').render(**context)
 
     assert "required_value = Column(String(100), nullable=False, comment='必填值')" in entity
     assert "optional_value = Column(String(100), nullable=True, comment='可选值')" in entity
+    assert 'from common.mixin import AuditTimeMixin' in entity
+    assert 'class GenItemDetail(AuditTimeMixin, Base):' in entity
+    assert '__create_time_nullable__ = False' in entity
+    assert 'create_time = Column(' not in entity
+    assert 'update_time = Column(' not in entity
+    assert "model_dump(exclude={'create_time', 'update_time'})" in dao
+    assert "if key not in {'create_time', 'update_time'}" in dao
+    compile(entity, '<generated-sub-entity>', 'exec')
+    compile(dao, '<generated-sub-dao>', 'exec')
 
 
 def test_named_data_source_bases_are_cached_and_isolated(monkeypatch: pytest.MonkeyPatch) -> None:
diff --git a/ruoyi-fastapi-backend/utils/gen_util.py b/ruoyi-fastapi-backend/utils/gen_util.py
index 33a4824c2..d37a42ec5 100644
--- a/ruoyi-fastapi-backend/utils/gen_util.py
+++ b/ruoyi-fastapi-backend/utils/gen_util.py
@@ -1,5 +1,4 @@
 import re
-from datetime import datetime
 
 from common.constant import GenConstant
 from config.env import DataBaseConfig, GenConfig
@@ -28,9 +27,7 @@ def init_table(cls, gen_table: GenTableModel, oper_name: str) -> None:
         gen_table.function_name = cls.replace_text(gen_table.table_comment)
         gen_table.function_author = GenConfig.author
         gen_table.create_by = oper_name
-        gen_table.create_time = datetime.now()
         gen_table.update_by = oper_name
-        gen_table.update_time = datetime.now()
 
     @classmethod
     def init_column_field(cls, column: GenTableColumnModel, table: GenTableModel) -> None:
@@ -105,9 +102,7 @@ def init_column_field(cls, column: GenTableColumnModel, table: GenTableModel) ->
             column.html_type = GenConstant.HTML_EDITOR
 
         column.create_by = table.create_by
-        column.create_time = datetime.now()
         column.update_by = table.update_by
-        column.update_time = datetime.now()
 
     @classmethod
     def arrays_contains(cls, arr: list[str], target_value: str) -> bool:
diff --git a/ruoyi-fastapi-backend/utils/template_util.py b/ruoyi-fastapi-backend/utils/template_util.py
index 21f56536a..b439b6584 100644
--- a/ruoyi-fastapi-backend/utils/template_util.py
+++ b/ruoyi-fastapi-backend/utils/template_util.py
@@ -299,6 +299,8 @@ def get_do_import_list(cls, gen_table: GenTableModel) -> list[str]:
         import_list.add('from sqlalchemy import Column')
         for column in columns:
             sqlalchemy_type = cls.get_sqlalchemy_type(column.column_type, gen_table.data_source_name)
+            if column.column_name in {'create_time', 'update_time'} and sqlalchemy_type == 'DateTime':
+                continue
             if sqlalchemy_type == 'Geometry':
                 import_list.add('from geoalchemy2 import Geometry')
             else:
@@ -308,6 +310,8 @@ def get_do_import_list(cls, gen_table: GenTableModel) -> list[str]:
             sub_columns = gen_table.sub_table.columns or []
             for sub_column in sub_columns:
                 sqlalchemy_type = cls.get_sqlalchemy_type(sub_column.column_type, gen_table.data_source_name)
+                if sub_column.column_name in {'create_time', 'update_time'} and sqlalchemy_type == 'DateTime':
+                    continue
                 if sqlalchemy_type == 'Geometry':
                     import_list.add('from geoalchemy2 import Geometry')
                 else: