diff --git a/app/command.py b/app/command.py
index 7f6652f5..d8eb3f52 100644
--- a/app/command.py
+++ b/app/command.py
@@ -13,7 +13,7 @@ from app.chain.transfer import TransferChain
 from app.core.event import Event as ManagerEvent
 from app.core.event import eventmanager, EventManager
 from app.core.plugin import PluginManager
-from app.db import SessionLocal
+from app.db import GlobalDB
 from app.log import logger
 from app.schemas.types import EventType, MessageChannel
 from app.utils.object import ObjectUtils
@@ -41,7 +41,7 @@ class Command(metaclass=Singleton):
 
     def __init__(self):
         # 数据库连接
-        self._db = SessionLocal()
+        self._db = GlobalDB
         # 事件管理器
         self.eventmanager = EventManager()
         # 插件管理器
diff --git a/app/db/__init__.py b/app/db/__init__.py
index e1367cde..402022a5 100644
--- a/app/db/__init__.py
+++ b/app/db/__init__.py
@@ -14,6 +14,9 @@ Engine = create_engine(f"sqlite:///{settings.CONFIG_PATH}/user.db",
 # 数据库会话
 SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=Engine)
 
+# 全局使用的数据库会话
+GlobalDB = SessionLocal()
+
 
 def get_db():
     """
@@ -37,7 +40,7 @@ class DbOper:
         if db:
             self._db = db
         else:
-            self._db = SessionLocal()
+            self._db = GlobalDB
 
     def __del__(self):
         if self._db:
diff --git a/app/db/init.py b/app/db/init.py
index bea477b4..ca5d81f7 100644
--- a/app/db/init.py
+++ b/app/db/init.py
@@ -6,7 +6,7 @@ from alembic.config import Config
 
 from app.core.config import settings
 from app.core.security import get_password_hash
-from app.db import Engine, SessionLocal
+from app.db import Engine, GlobalDB
 from app.db.models import Base
 from app.db.models.user import User
 from app.log import logger
@@ -22,15 +22,14 @@ def init_db():
     # 全量建表
     Base.metadata.create_all(bind=Engine)
     # 初始化超级管理员
-    _db = SessionLocal()
-    user = User.get_by_name(db=_db, name=settings.SUPERUSER)
+    user = User.get_by_name(db=GlobalDB, 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(GlobalDB)
 
 
 def update_db():
diff --git a/app/plugins/__init__.py b/app/plugins/__init__.py
index 60457c71..7c884fdd 100644
--- a/app/plugins/__init__.py
+++ b/app/plugins/__init__.py
@@ -5,7 +5,7 @@ from typing import Any, List, Dict, Tuple
 from app.chain import ChainBase
 from app.core.config import settings
 from app.core.event import EventManager
-from app.db import SessionLocal
+from app.db import GlobalDB
 from app.db.models import Base
 from app.db.plugindata_oper import PluginDataOper
 from app.db.systemconfig_oper import SystemConfigOper
@@ -37,7 +37,7 @@ class _PluginBase(metaclass=ABCMeta):
 
     def __init__(self):
         # 数据库连接
-        self.db = SessionLocal()
+        self.db = GlobalDB
         # 插件数据
         self.plugindata = PluginDataOper(self.db)
         # 处理链
diff --git a/app/scheduler.py b/app/scheduler.py
index 3a2fbd3c..06d1f078 100644
--- a/app/scheduler.py
+++ b/app/scheduler.py
@@ -12,7 +12,7 @@ from app.chain.rss import RssChain
 from app.chain.subscribe import SubscribeChain
 from app.chain.transfer import TransferChain
 from app.core.config import settings
-from app.db import SessionLocal
+from app.db import GlobalDB
 from app.log import logger
 from app.utils.singleton import Singleton
 from app.utils.timer import TimerUtils
@@ -40,7 +40,7 @@ class Scheduler(metaclass=Singleton):
 
     def __init__(self):
         # 数据库连接
-        self._db = SessionLocal()
+        self._db = GlobalDB
         # 调试模式不启动定时服务
         if settings.DEV:
             return