diff --git a/api/openapi-spec/swagger.json b/api/openapi-spec/swagger.json
index e1420f56b..b63e41cc7 100644
--- a/api/openapi-spec/swagger.json
+++ b/api/openapi-spec/swagger.json
@@ -14139,6 +14139,10 @@
           "description": "The API endpoint of the member cluster. This can be a hostname, hostname:port, IP or IP:port.",
           "type": "string"
         },
+        "id": {
+          "description": "ID is the unique identifier for the cluster. It is different from the object uid(.metadata.uid) and typically collected automatically from member cluster during the progress of registration.\n\nThe value is collected in order: 1. If the registering cluster enabled ClusterProperty API and defined the cluster ID by\n  creating a ClusterProperty object with name 'cluster.clusterset.k8s.io', Karmada would\n  take the defined value in the ClusterProperty object.\n  See https://github.com/kubernetes-sigs/about-api for more details about ClusterProperty API.\n2. Take the uid of 'kube-system' namespace on the registering cluster.\n\nPlease don't update this value unless you know what you are doing, because it will/may be used to : - uniquely identify the clusters within the Karmada system. - compose the DNS name of multi-cluster services.",
+          "type": "string"
+        },
         "impersonatorSecretRef": {
           "description": "ImpersonatorSecretRef represents the secret contains the token of impersonator. The secret should hold credentials as follows: - secret.data.token",
           "$ref": "#/definitions/com.github.karmada-io.karmada.pkg.apis.cluster.v1alpha1.LocalSecretReference"
diff --git a/pkg/apis/cluster/types.go b/pkg/apis/cluster/types.go
index c1a15f0a9..38edcc98d 100644
--- a/pkg/apis/cluster/types.go
+++ b/pkg/apis/cluster/types.go
@@ -26,6 +26,26 @@ type Cluster struct {
 
 // ClusterSpec defines the desired state of a member cluster.
 type ClusterSpec struct {
+	// ID is the unique identifier for the cluster.
+	// It is different from the object uid(.metadata.uid) and typically collected automatically
+	// from member cluster during the progress of registration.
+	//
+	// The value is collected in order:
+	// 1. If the registering cluster enabled ClusterProperty API and defined the cluster ID by
+	//   creating a ClusterProperty object with name 'cluster.clusterset.k8s.io', Karmada would
+	//   take the defined value in the ClusterProperty object.
+	//   See https://github.com/kubernetes-sigs/about-api for more details about ClusterProperty API.
+	// 2. Take the uid of 'kube-system' namespace on the registering cluster.
+	//
+	// Please don't update this value unless you know what you are doing, because
+	// it will/may be used to :
+	// - uniquely identify the clusters within the Karmada system.
+	// - compose the DNS name of multi-cluster services.
+	//
+	// +optional
+	// +kubebuilder:validation:Maxlength=128000
+	ID string `json:"id,omitempty"`
+
 	// SyncMode describes how a cluster sync resources from karmada control plane.
 	// +required
 	SyncMode ClusterSyncMode
diff --git a/pkg/apis/cluster/v1alpha1/types.go b/pkg/apis/cluster/v1alpha1/types.go
index 60403f363..11bdced40 100644
--- a/pkg/apis/cluster/v1alpha1/types.go
+++ b/pkg/apis/cluster/v1alpha1/types.go
@@ -37,6 +37,26 @@ type Cluster struct {
 
 // ClusterSpec defines the desired state of a member cluster.
 type ClusterSpec struct {
+	// ID is the unique identifier for the cluster.
+	// It is different from the object uid(.metadata.uid) and typically collected automatically
+	// from member cluster during the progress of registration.
+	//
+	// The value is collected in order:
+	// 1. If the registering cluster enabled ClusterProperty API and defined the cluster ID by
+	//   creating a ClusterProperty object with name 'cluster.clusterset.k8s.io', Karmada would
+	//   take the defined value in the ClusterProperty object.
+	//   See https://github.com/kubernetes-sigs/about-api for more details about ClusterProperty API.
+	// 2. Take the uid of 'kube-system' namespace on the registering cluster.
+	//
+	// Please don't update this value unless you know what you are doing, because
+	// it will/may be used to :
+	// - uniquely identify the clusters within the Karmada system.
+	// - compose the DNS name of multi-cluster services.
+	//
+	// +optional
+	// +kubebuilder:validation:Maxlength=128000
+	ID string `json:"id,omitempty"`
+
 	// SyncMode describes how a cluster sync resources from karmada control plane.
 	// +kubebuilder:validation:Enum=Push;Pull
 	// +required
diff --git a/pkg/apis/cluster/v1alpha1/zz_generated.conversion.go b/pkg/apis/cluster/v1alpha1/zz_generated.conversion.go
index 4509418fa..86cd65413 100644
--- a/pkg/apis/cluster/v1alpha1/zz_generated.conversion.go
+++ b/pkg/apis/cluster/v1alpha1/zz_generated.conversion.go
@@ -268,6 +268,7 @@ func Convert_url_Values_To_v1alpha1_ClusterProxyOptions(in *url.Values, out *Clu
 }
 
 func autoConvert_v1alpha1_ClusterSpec_To_cluster_ClusterSpec(in *ClusterSpec, out *cluster.ClusterSpec, s conversion.Scope) error {
+	out.ID = in.ID
 	out.SyncMode = cluster.ClusterSyncMode(in.SyncMode)
 	out.APIEndpoint = in.APIEndpoint
 	out.SecretRef = (*cluster.LocalSecretReference)(unsafe.Pointer(in.SecretRef))
@@ -288,6 +289,7 @@ func Convert_v1alpha1_ClusterSpec_To_cluster_ClusterSpec(in *ClusterSpec, out *c
 }
 
 func autoConvert_cluster_ClusterSpec_To_v1alpha1_ClusterSpec(in *cluster.ClusterSpec, out *ClusterSpec, s conversion.Scope) error {
+	out.ID = in.ID
 	out.SyncMode = ClusterSyncMode(in.SyncMode)
 	out.APIEndpoint = in.APIEndpoint
 	out.SecretRef = (*LocalSecretReference)(unsafe.Pointer(in.SecretRef))
diff --git a/pkg/generated/openapi/zz_generated.openapi.go b/pkg/generated/openapi/zz_generated.openapi.go
index 3cc42bc8f..35fa44135 100644
--- a/pkg/generated/openapi/zz_generated.openapi.go
+++ b/pkg/generated/openapi/zz_generated.openapi.go
@@ -642,6 +642,13 @@ func schema_pkg_apis_cluster_v1alpha1_ClusterSpec(ref common.ReferenceCallback)
 				Description: "ClusterSpec defines the desired state of a member cluster.",
 				Type:        []string{"object"},
 				Properties: map[string]spec.Schema{
+					"id": {
+						SchemaProps: spec.SchemaProps{
+							Description: "ID is the unique identifier for the cluster. It is different from the object uid(.metadata.uid) and typically collected automatically from member cluster during the progress of registration.\n\nThe value is collected in order: 1. If the registering cluster enabled ClusterProperty API and defined the cluster ID by\n  creating a ClusterProperty object with name 'cluster.clusterset.k8s.io', Karmada would\n  take the defined value in the ClusterProperty object.\n  See https://github.com/kubernetes-sigs/about-api for more details about ClusterProperty API.\n2. Take the uid of 'kube-system' namespace on the registering cluster.\n\nPlease don't update this value unless you know what you are doing, because it will/may be used to : - uniquely identify the clusters within the Karmada system. - compose the DNS name of multi-cluster services.",
+							Type:        []string{"string"},
+							Format:      "",
+						},
+					},
 					"syncMode": {
 						SchemaProps: spec.SchemaProps{
 							Description: "SyncMode describes how a cluster sync resources from karmada control plane.",