diff --git a/staging/src/k8s.io/client-go/informers/factory.go b/staging/src/k8s.io/client-go/informers/factory.go
index 67e5f624b5e..4116be71dd9 100644
--- a/staging/src/k8s.io/client-go/informers/factory.go
+++ b/staging/src/k8s.io/client-go/informers/factory.go
@@ -73,6 +73,28 @@ func (f *sharedInformerFactory) Start(stopCh <-chan struct{}) {
 	}
 }
 
+// WaitForCacheSync waits for all started informers' cache were synced.
+func (f *sharedInformerFactory) WaitForCacheSync(stopCh <-chan struct{}) map[reflect.Type]bool {
+	informers := func() map[reflect.Type]cache.SharedIndexInformer {
+		f.lock.Lock()
+		defer f.lock.Unlock()
+
+		informers := map[reflect.Type]cache.SharedIndexInformer{}
+		for informerType, informer := range f.informers {
+			if f.startedInformers[informerType] {
+				informers[informerType] = informer
+			}
+		}
+		return informers
+	}()
+
+	res := map[reflect.Type]bool{}
+	for informType, informer := range informers {
+		res[informType] = cache.WaitForCacheSync(stopCh, informer.HasSynced)
+	}
+	return res
+}
+
 // InternalInformerFor returns the SharedIndexInformer for obj using an internal
 // client.
 func (f *sharedInformerFactory) InformerFor(obj runtime.Object, newFunc internalinterfaces.NewInformerFunc) cache.SharedIndexInformer {
@@ -95,6 +117,7 @@ func (f *sharedInformerFactory) InformerFor(obj runtime.Object, newFunc internal
 type SharedInformerFactory interface {
 	internalinterfaces.SharedInformerFactory
 	ForResource(resource schema.GroupVersionResource) (GenericInformer, error)
+	WaitForCacheSync(stopCh <-chan struct{}) map[reflect.Type]bool
 
 	Apps() apps.Interface
 	Autoscaling() autoscaling.Interface