diff --git a/cmd/controller-manager/app/options/options.go b/cmd/controller-manager/app/options/options.go
index 210b92414e5f..264207c30afd 100644
--- a/cmd/controller-manager/app/options/options.go
+++ b/cmd/controller-manager/app/options/options.go
@@ -185,8 +185,9 @@ func (o *Options) AddFlags(flags *pflag.FlagSet, allControllers, disabledByDefau
 		"<group> for skip resources with a specific API group(e.g. networking.k8s.io),\n"+
 		"<group>/<version> for skip resources with a specific API version(e.g. networking.k8s.io/v1beta1),\n"+
 		"<group>/<version>/<kind>,<kind> for skip one or more specific resource(e.g. networking.k8s.io/v1beta1/Ingress,IngressClass) where the kinds are case-insensitive.")
-	flags.StringSliceVar(&o.SkippedPropagatingNamespaces, "skipped-propagating-namespaces", []string{},
-		"Comma-separated namespaces that should be skipped from propagating in addition to the default skipped namespaces(karmada-system, karmada-cluster, namespaces prefixed by kube- and karmada-es-).")
+	flags.StringSliceVar(&o.SkippedPropagatingNamespaces, "skipped-propagating-namespaces", []string{"kube-.*"},
+		"Comma-separated namespaces that should be skipped from propagating in addition to the default skipped namespaces 'kube-.*'.\n"+
+			"Note: 'karmada-system', 'karmada-cluster', and 'karmada-es-.*' are Karmada reserved namespaces that also skip propagation.")
 	flags.StringVar(&o.ClusterAPIContext, "cluster-api-context", "", "Name of the cluster context in cluster-api management cluster kubeconfig file.")
 	flags.StringVar(&o.ClusterAPIKubeconfig, "cluster-api-kubeconfig", "", "Path to the cluster-api management cluster kubeconfig file.")
 	flags.Float32Var(&o.ClusterAPIQPS, "cluster-api-qps", 40.0, "QPS to use while talking with cluster kube-apiserver. Doesn't cover events and node heartbeat apis which rate limiting is controlled by a different set of flags.")
diff --git a/pkg/util/names/names.go b/pkg/util/names/names.go
index 791ce90cb79b..daee8f70e913 100644
--- a/pkg/util/names/names.go
+++ b/pkg/util/names/names.go
@@ -11,11 +11,6 @@ import (
 )
 
 const (
-	// KubernetesReservedNSPrefix is the prefix of namespace which reserved by Kubernetes system, such as:
-	// - kube-system
-	// - kube-public
-	// - kube-node-lease
-	KubernetesReservedNSPrefix = "kube-"
 	// NamespaceKarmadaSystem is reserved namespace
 	NamespaceKarmadaSystem = "karmada-system"
 	// NamespaceKarmadaCluster is reserved namespace
@@ -137,8 +132,7 @@ func GenerateEstimatorDeploymentName(clusterName string) string {
 func IsReservedNamespace(namespace string) bool {
 	return namespace == NamespaceKarmadaSystem ||
 		namespace == NamespaceKarmadaCluster ||
-		strings.HasPrefix(namespace, ExecutionSpacePrefix) ||
-		strings.HasPrefix(namespace, KubernetesReservedNSPrefix)
+		strings.HasPrefix(namespace, ExecutionSpacePrefix)
 }
 
 // GenerateImpersonationSecretName generates the secret name of impersonation secret.
diff --git a/pkg/util/names/names_test.go b/pkg/util/names/names_test.go
index 8df34f2d6025..38f3c659a2aa 100644
--- a/pkg/util/names/names_test.go
+++ b/pkg/util/names/names_test.go
@@ -353,11 +353,6 @@ func TestIsReservedNamespace(t *testing.T) {
 			namespace: NamespaceKarmadaCluster,
 			expected:  true,
 		},
-		{
-			name:      "kube-",
-			namespace: KubernetesReservedNSPrefix,
-			expected:  true,
-		},
 		{
 			name:      "karmada-es-",
 			namespace: ExecutionSpacePrefix,