diff --git a/main.py b/main.py
index 691bc72..af57c61 100644
--- a/main.py
+++ b/main.py
@@ -63,10 +63,31 @@ async def global_auth(request: Request):
     if token != "Bearer 567e33c876a2" and token != "Bearer 38b3be72b8af":
         raise HTTPException(status_code=401, detail="Invalid token")
 
-# 全局依赖项
-app = FastAPI(dependencies=[Depends(global_auth)])
+# 简易令牌验证（实际项目中应替换为 JWT/OAuth2 等）
+AUTH_TOKEN = "567e33c876a2"  # 预设的有效令牌
 
-# app = FastAPI()
+async def verify_token(authorization: Annotated[str, Header()] = None):
+    # 检查请求头是否存在
+    if not authorization:
+        raise HTTPException(status_code=401, detail="Authorization header missing")
+    
+    # 提取 Bearer 后的令牌 (格式: Bearer <token>)
+    try:
+        token_type, token = authorization.split(" ", 1)
+        if token_type.lower() != "bearer":
+            raise ValueError
+    except ValueError:
+        raise HTTPException(status_code=401, detail="Invalid authorization format. Use: Bearer <token>")
+    
+    # 验证令牌
+    if token != AUTH_TOKEN:
+        raise HTTPException(status_code=403, detail="Invalid authentication token")
+    
+    return True
+
+# 全局依赖项
+# app = FastAPI(dependencies=[Depends(global_auth)])
+app = FastAPI()
 
 access_tokens = []
 
@@ -1771,7 +1792,7 @@ async def fastapi_get_node_coord(network: str, node: str) -> dict[str, float] |
 # links: id:type:node1:node2
 # node type: junction, reservoir, tank
 # link type: pipe, pump, valve
-@app.get("/getnetworkgeometries/")
+@app.get("/getnetworkgeometries/", dependencies=[Depends(verify_token)])
 async def fastapi_get_network_geometries(network: str) -> dict[str, Any] | None:
 
     # 获取所有节点坐标# 缓存查询结果提高性能