diff --git a/backend/app/models/__init__.py b/backend/app/models/__init__.py
index d709919..b3c8817 100644
--- a/backend/app/models/__init__.py
+++ b/backend/app/models/__init__.py
@@ -1,6 +1,7 @@
 """
 导出所有数据库模型
 """
+from app.core.database import Base
 from app.models.user import User
 from app.models.role import Role, UserRole
 from app.models.menu import SystemMenu, RoleMenu
@@ -9,6 +10,7 @@ from app.models.document import DocumentMeta
 from app.models.log import OperationLog
 
 __all__ = [
+    "Base",
     "User",
     "Role",
     "UserRole",