diff --git a/app/db/__init__.py b/app/db/__init__.py
index 19649177..909b8d2b 100644
--- a/app/db/__init__.py
+++ b/app/db/__init__.py
@@ -1,7 +1,10 @@
+from typing import Any, Self, List
 from typing import Tuple, Optional, Generator
 
 from sqlalchemy import create_engine, QueuePool
-from sqlalchemy.orm import sessionmaker, Session, scoped_session
+from sqlalchemy import inspect
+from sqlalchemy.orm import declared_attr
+from sqlalchemy.orm import sessionmaker, Session, scoped_session, as_declarative
 
 from app.core.config import settings
 
@@ -135,6 +138,52 @@ def db_query(func):
     return wrapper
 
 
+@as_declarative()
+class Base:
+    id: Any
+    __name__: str
+
+    @db_update
+    def create(self, db: Session):
+        db.add(self)
+
+    @classmethod
+    @db_query
+    def get(cls, db: Session, rid: int) -> Self:
+        return db.query(cls).filter(cls.id == rid).first()
+
+    @db_update
+    def update(self, db: Session, payload: dict):
+        payload = {k: v for k, v in payload.items() if v is not None}
+        for key, value in payload.items():
+            setattr(self, key, value)
+        if inspect(self).detached:
+            db.add(self)
+
+    @classmethod
+    @db_update
+    def delete(cls, db: Session, rid):
+        db.query(cls).filter(cls.id == rid).delete()
+
+    @classmethod
+    @db_update
+    def truncate(cls, db: Session):
+        db.query(cls).delete()
+
+    @classmethod
+    @db_query
+    def list(cls, db: Session) -> List[Self]:
+        result = db.query(cls).all()
+        return list(result)
+
+    def to_dict(self):
+        return {c.name: getattr(self, c.name, None) for c in self.__table__.columns}
+
+    @declared_attr
+    def __tablename__(self) -> str:
+        return self.__name__.lower()
+
+
 class DbOper:
     """
     数据库操作基类
diff --git a/app/db/init.py b/app/db/init.py
index d21b1090..bd3444f4 100644
--- a/app/db/init.py
+++ b/app/db/init.py
@@ -1,15 +1,10 @@
-import importlib
-from pathlib import Path
-
 from alembic.command import upgrade
 from alembic.config import Config
 
 from app.core.config import settings
 from app.core.security import get_password_hash
-from app.db import Engine, SessionFactory
-from app.db.models import Base
-from app.db.models.user import User
-from app.helper.module import ModuleHelper
+from app.db import Engine, SessionFactory, Base
+from app.db.models import *
 from app.log import logger
 
 
@@ -17,21 +12,18 @@ def init_db():
     """
     初始化数据库
     """
-    # 导入模块，避免建表缺失
-    models_path = Path(__file__).with_name("models")
-    ModuleHelper.dynamic_import_all_modules(models_path, "app.db.models")
     # 全量建表
     Base.metadata.create_all(bind=Engine)
     # 初始化超级管理员
     with SessionFactory() as db:
-        user = User.get_by_name(db=db, name=settings.SUPERUSER)
-        if not user:
-            user = User(
+        _user = User.get_by_name(db=db, name=settings.SUPERUSER)
+        if not _user:
+            _user = User(
                 name=settings.SUPERUSER,
                 hashed_password=get_password_hash(settings.SUPERUSER_PASSWORD),
                 is_superuser=True,
             )
-            user.create(db)
+            _user.create(db)
 
 
 def update_db():
diff --git a/app/db/models/__init__.py b/app/db/models/__init__.py
index 067d2559..57ddee03 100644
--- a/app/db/models/__init__.py
+++ b/app/db/models/__init__.py
@@ -1,52 +1,9 @@
-from typing import Any, Self, List
-
-from sqlalchemy import inspect
-from sqlalchemy.orm import as_declarative, declared_attr, Session
-
-from app.db import db_update, db_query
-
-
-@as_declarative()
-class Base:
-    id: Any
-    __name__: str
-
-    @db_update
-    def create(self, db: Session):
-        db.add(self)
-
-    @classmethod
-    @db_query
-    def get(cls, db: Session, rid: int) -> Self:
-        return db.query(cls).filter(cls.id == rid).first()
-
-    @db_update
-    def update(self, db: Session, payload: dict):
-        payload = {k: v for k, v in payload.items() if v is not None}
-        for key, value in payload.items():
-            setattr(self, key, value)
-        if inspect(self).detached:
-            db.add(self)
-
-    @classmethod
-    @db_update
-    def delete(cls, db: Session, rid):
-        db.query(cls).filter(cls.id == rid).delete()
-
-    @classmethod
-    @db_update
-    def truncate(cls, db: Session):
-        db.query(cls).delete()
-
-    @classmethod
-    @db_query
-    def list(cls, db: Session) -> List[Self]:
-        result = db.query(cls).all()
-        return list(result)
-
-    def to_dict(self):
-        return {c.name: getattr(self, c.name, None) for c in self.__table__.columns}
-
-    @declared_attr
-    def __tablename__(self) -> str:
-        return self.__name__.lower()
+from .downloadhistory import DownloadHistory, DownloadFiles
+from .mediaserver import MediaServerItem
+from .plugindata import PluginData
+from .site import Site
+from .siteicon import SiteIcon
+from .subscribe import Subscribe
+from .systemconfig import SystemConfig
+from .transferhistory import TransferHistory
+from .user import User
diff --git a/app/db/models/downloadhistory.py b/app/db/models/downloadhistory.py
index d37ab652..1e796877 100644
--- a/app/db/models/downloadhistory.py
+++ b/app/db/models/downloadhistory.py
@@ -1,8 +1,7 @@
 from sqlalchemy import Column, Integer, String, Sequence
 from sqlalchemy.orm import Session
 
-from app.db import db_query
-from app.db.models import Base, db_update
+from app.db import db_query, db_update, Base
 
 
 class DownloadHistory(Base):
diff --git a/app/db/models/mediaserver.py b/app/db/models/mediaserver.py
index df28d072..1690bc04 100644
--- a/app/db/models/mediaserver.py
+++ b/app/db/models/mediaserver.py
@@ -4,8 +4,7 @@ from typing import Optional
 from sqlalchemy import Column, Integer, String, Sequence
 from sqlalchemy.orm import Session
 
-from app.db import db_query
-from app.db.models import Base, db_update
+from app.db import db_query, db_update, Base
 
 
 class MediaServerItem(Base):
diff --git a/app/db/models/plugindata.py b/app/db/models/plugindata.py
index f6346728..d10ee14c 100644
--- a/app/db/models/plugindata.py
+++ b/app/db/models/plugindata.py
@@ -1,8 +1,7 @@
 from sqlalchemy import Column, Integer, String, Sequence
 from sqlalchemy.orm import Session
 
-from app.db import db_query
-from app.db.models import Base, db_update
+from app.db import db_query, db_update, Base
 
 
 class PluginData(Base):
diff --git a/app/db/models/site.py b/app/db/models/site.py
index e79fe413..297e8813 100644
--- a/app/db/models/site.py
+++ b/app/db/models/site.py
@@ -3,8 +3,7 @@ from datetime import datetime
 from sqlalchemy import Boolean, Column, Integer, String, Sequence
 from sqlalchemy.orm import Session
 
-from app.db import db_query
-from app.db.models import Base, db_update
+from app.db import db_query, db_update, Base
 
 
 class Site(Base):
diff --git a/app/db/models/siteicon.py b/app/db/models/siteicon.py
index 787b86c4..770cd37e 100644
--- a/app/db/models/siteicon.py
+++ b/app/db/models/siteicon.py
@@ -1,8 +1,7 @@
 from sqlalchemy import Column, Integer, String, Sequence
 from sqlalchemy.orm import Session
 
-from app.db import db_query
-from app.db.models import Base
+from app.db import db_query, Base
 
 
 class SiteIcon(Base):
diff --git a/app/db/models/subscribe.py b/app/db/models/subscribe.py
index b9699e36..187c2c38 100644
--- a/app/db/models/subscribe.py
+++ b/app/db/models/subscribe.py
@@ -1,8 +1,7 @@
 from sqlalchemy import Column, Integer, String, Sequence
 from sqlalchemy.orm import Session
 
-from app.db import db_update, db_query
-from app.db.models import Base
+from app.db import db_query, db_update, Base
 
 
 class Subscribe(Base):
diff --git a/app/db/models/systemconfig.py b/app/db/models/systemconfig.py
index 5a304c01..d26b9aee 100644
--- a/app/db/models/systemconfig.py
+++ b/app/db/models/systemconfig.py
@@ -1,8 +1,7 @@
 from sqlalchemy import Column, Integer, String, Sequence
 from sqlalchemy.orm import Session
 
-from app.db import db_update, db_query
-from app.db.models import Base
+from app.db import db_query, db_update, Base
 
 
 class SystemConfig(Base):
diff --git a/app/db/models/transferhistory.py b/app/db/models/transferhistory.py
index a906b8a0..93948008 100644
--- a/app/db/models/transferhistory.py
+++ b/app/db/models/transferhistory.py
@@ -3,8 +3,7 @@ import time
 from sqlalchemy import Column, Integer, String, Sequence, Boolean, func
 from sqlalchemy.orm import Session
 
-from app.db import db_query
-from app.db.models import Base, db_update
+from app.db import db_query, db_update, Base
 
 
 class TransferHistory(Base):
diff --git a/app/db/models/user.py b/app/db/models/user.py
index b058c48a..51aad923 100644
--- a/app/db/models/user.py
+++ b/app/db/models/user.py
@@ -2,8 +2,7 @@ from sqlalchemy import Boolean, Column, Integer, String, Sequence
 from sqlalchemy.orm import Session
 
 from app.core.security import verify_password
-from app.db import db_update, db_query
-from app.db.models import Base
+from app.db import db_query, db_update, Base
 
 
 class User(Base):
diff --git a/app/helper/module.py b/app/helper/module.py
index f0e9ba6e..e4c7ce33 100644
--- a/app/helper/module.py
+++ b/app/helper/module.py
@@ -40,7 +40,7 @@ class ModuleHelper:
     @staticmethod
     def dynamic_import_all_modules(base_path: Path, package_name: str):
         """
-        动态导入所有模块到全局对象
+        动态导入目录下所有模块
         """
         modules = []
         # 遍历文件夹，找到所有模块文件
@@ -48,14 +48,5 @@ class ModuleHelper:
             file_name = file.stem
             if file_name != "__init__":
                 modules.append(file_name)
-        # 保存已有的全局对象
-        existing_globals = set(globals().keys())
-        # 动态导入并添加到全局命名空间
-        for module in modules:
-            full_module_name = f"{package_name}.{module}"
-            import_module = importlib.import_module(full_module_name)
-            module_globals = import_module.__dict__
-            # 仅导入全局对象中不存在的部分
-            new_objects = {name: value for name, value in module_globals.items() if name not in existing_globals}
-            # 更新全局命名空间
-            globals().update(new_objects)
+                full_module_name = f"{package_name}.{file_name}"
+                importlib.import_module(full_module_name)
diff --git a/database/env.py b/database/env.py
index 0192775e..0efb8484 100644
--- a/database/env.py
+++ b/database/env.py
@@ -5,7 +5,7 @@ from sqlalchemy import pool
 
 from alembic import context
 
-from app.db.models import Base
+from app.db import Base
 # this is the Alembic Config object, which provides
 # access to the values within the .ini file in use.
 config = context.config
diff --git a/version.py b/version.py
index 36be3e77..ca0b8d10 100644
--- a/version.py
+++ b/version.py
@@ -1 +1 @@
-APP_VERSION = 'v1.4.8-1'
+APP_VERSION = 'v1.4.8-2'