diff --git a/backend/routes.py b/backend/routes.py
index 12f2715..eadd341 100644
--- a/backend/routes.py
+++ b/backend/routes.py
@@ -71,25 +71,26 @@ async def check_auth(request: Request, db: Session = Depends(get_db)):
             }
     raise HTTPException(status_code=401, detail='未登录')
 
-@api.post('/auth/register', status_code=201)
-async def register(data: RegisterRequest, db: Session = Depends(get_db)):
-    """用户注册（可选，用于创建初始用户）"""
-    # 检查用户是否已存在
-    if db.query(User).filter_by(username=data.username).first():
-        raise HTTPException(status_code=400, detail='用户名已存在')
-
-    # 创建新用户
-    user = User(username=data.username)
-    user.set_password(data.password)
-
-    db.add(user)
-    db.commit()
-    db.refresh(user)
-
-    return {
-        'message': '注册成功',
-        'user': user.to_dict()
-    }
+# 注册接口已关闭 - 请使用 create_user.py 脚本创建用户
+# @api.post('/auth/register', status_code=201)
+# async def register(data: RegisterRequest, db: Session = Depends(get_db)):
+#     """用户注册（可选，用于创建初始用户）"""
+#     # 检查用户是否已存在
+#     if db.query(User).filter_by(username=data.username).first():
+#         raise HTTPException(status_code=400, detail='用户名已存在')
+#
+#     # 创建新用户
+#     user = User(username=data.username)
+#     user.set_password(data.password)
+#
+#     db.add(user)
+#     db.commit()
+#     db.refresh(user)
+#
+#     return {
+#         'message': '注册成功',
+#         'user': user.to_dict()
+#     }
 
 # 任务管理API
 @api.get('/tasks')