diff --git a/pkg/gcmanager/scanAll_IPPool.go b/pkg/gcmanager/scanAll_IPPool.go
index 5621bd5c85..219e50ceba 100644
--- a/pkg/gcmanager/scanAll_IPPool.go
+++ b/pkg/gcmanager/scanAll_IPPool.go
@@ -31,8 +31,10 @@ func (s *SpiderGC) monitorGCSignal(ctx context.Context) {
 	timer := time.NewTimer(d)
 	defer timer.Stop()
 
-	logger.Debug("initial scan all for cluster firstly")
-	s.gcSignal <- struct{}{}
+	go func() {
+		logger.Debug("initial scan all for cluster firstly")
+		s.gcSignal <- struct{}{}
+	}()
 
 	for {
 		select {