diff --git a/business/jxstore/event/event_tcp_utils.go b/business/jxstore/event/event_tcp_utils.go
index e510769e2..c56eaa0b1 100644
--- a/business/jxstore/event/event_tcp_utils.go
+++ b/business/jxstore/event/event_tcp_utils.go
@@ -127,10 +127,10 @@ func (t *TcpClient) delConn(key string) {
 	t.Lock()
 	defer t.Unlock()
 
-	delete(t.Clients, key)
 	if t.Clients[key].C != nil {
 		t.Clients[key].C.Close()
 	}
+	delete(t.Clients, key)
 }
 
 func (t *TcpClient) addConn(c net.Conn, key string, status int) {