diff --git a/pkg/koordlet/statesinformer/impl/states_pods.go b/pkg/koordlet/statesinformer/impl/states_pods.go
index d79429ec1..d3747d9b9 100644
--- a/pkg/koordlet/statesinformer/impl/states_pods.go
+++ b/pkg/koordlet/statesinformer/impl/states_pods.go
@@ -162,7 +162,10 @@ func (s *podsInformer) syncPods() error {
 		// record pod container metrics
 		recordPodResourceMetrics(podMeta)
 	}
+	s.podRWMutex.Lock()
 	s.podMap = newPodMap
+	s.podRWMutex.Unlock()
+
 	s.podHasSynced.Store(true)
 	s.podUpdatedTime = time.Now()
 	klog.V(4).Infof("get pods success, len %d, time %s", len(s.podMap), s.podUpdatedTime.String())