diff --git a/detection/src/main/java/com/njcn/gather/detection/service/impl/PreDetectionServiceImpl.java b/detection/src/main/java/com/njcn/gather/detection/service/impl/PreDetectionServiceImpl.java
index a35a230b..97b9231a 100644
--- a/detection/src/main/java/com/njcn/gather/detection/service/impl/PreDetectionServiceImpl.java
+++ b/detection/src/main/java/com/njcn/gather/detection/service/impl/PreDetectionServiceImpl.java
@@ -287,9 +287,8 @@ public class PreDetectionServiceImpl implements PreDetectionService {
         preDetectionParam.setSourceId(sourceParam.getSourceId());
         preDetectionParam.setUserPageId(param.getUserPageId());
         CnSocketUtil.quitSendSource(preDetectionParam);
-        WebServiceManager.removePreDetectionParam();
 
-        SocketManager.removeUser(param.getUserPageId() + source);
+        WebServiceManager.removePreDetectionParam();
     }
 
     /**