diff --git a/backend/app/middleware/opera_log_middleware.py b/backend/app/middleware/opera_log_middleware.py
index 4b5d7f44..403fcf2f 100644
--- a/backend/app/middleware/opera_log_middleware.py
+++ b/backend/app/middleware/opera_log_middleware.py
@@ -92,7 +92,7 @@ class OperaLogMiddleware:
         end_time = datetime.now()
         summary = request.scope.get('route').summary
         title = summary if summary != '' else request.scope.get('route').summary
-        cost_time = (end_time - start_time).total_seconds() / 1000.0
+        cost_time = (end_time - start_time).total_seconds() * 1000.0
 
         # 日志创建
         opera_log_in = CreateOperaLog(