diff --git a/flink-kubernetes-operator/src/main/java/org/apache/flink/kubernetes/operator/reconciler/sessionjob/FlinkSessionJobReconciler.java b/flink-kubernetes-operator/src/main/java/org/apache/flink/kubernetes/operator/reconciler/sessionjob/FlinkSessionJobReconciler.java
index cad95c9624..7893ac89f0 100644
--- a/flink-kubernetes-operator/src/main/java/org/apache/flink/kubernetes/operator/reconciler/sessionjob/FlinkSessionJobReconciler.java
+++ b/flink-kubernetes-operator/src/main/java/org/apache/flink/kubernetes/operator/reconciler/sessionjob/FlinkSessionJobReconciler.java
@@ -42,12 +42,14 @@
 
 import javax.annotation.Nullable;
 
+import java.util.HashMap;
 import java.util.Optional;
 
 /** The reconciler for the {@link FlinkSessionJob}. */
 public class FlinkSessionJobReconciler implements Reconciler<FlinkSessionJob> {
 
     private static final Logger LOG = LoggerFactory.getLogger(FlinkSessionJobReconciler.class);
+    public static final String LABEL_SESSION_CLUSTER = "target.session.name";
 
     private final FlinkConfigManager configManager;
     private final KubernetesClient kubernetesClient;
@@ -76,6 +78,24 @@ public void reconcile(FlinkSessionJob flinkSessionJob, Context context) throws E
                 OperatorUtils.getSecondaryResource(
                         flinkSessionJob, context, configManager.getOperatorConfiguration());
 
+        var labels = flinkSessionJob.getMetadata().getLabels();
+        if (labels == null) {
+            labels = new HashMap<>();
+        }
+        if (!flinkSessionJob
+                .getSpec()
+                .getDeploymentName()
+                .equals(labels.get(LABEL_SESSION_CLUSTER))) {
+            labels.put(LABEL_SESSION_CLUSTER, flinkSessionJob.getSpec().getDeploymentName());
+            flinkSessionJob.getMetadata().setLabels(labels);
+            kubernetesClient
+                    .resources(FlinkSessionJob.class)
+                    .inNamespace(flinkSessionJob.getMetadata().getNamespace())
+                    .withName(flinkSessionJob.getMetadata().getName())
+                    .patch(flinkSessionJob);
+            return;
+        }
+
         // if session cluster is not ready, we can't do reconcile for the job.
         if (!helper.sessionClusterReady(flinkDepOptional)) {
             return;
diff --git a/flink-kubernetes-operator/src/test/java/org/apache/flink/kubernetes/operator/TestUtils.java b/flink-kubernetes-operator/src/test/java/org/apache/flink/kubernetes/operator/TestUtils.java
index 38ea772864..f57a23ad06 100644
--- a/flink-kubernetes-operator/src/test/java/org/apache/flink/kubernetes/operator/TestUtils.java
+++ b/flink-kubernetes-operator/src/test/java/org/apache/flink/kubernetes/operator/TestUtils.java
@@ -42,6 +42,7 @@
 import org.apache.flink.kubernetes.operator.metrics.MetricManager;
 import org.apache.flink.kubernetes.operator.observer.deployment.ObserverFactory;
 import org.apache.flink.kubernetes.operator.reconciler.deployment.ReconcilerFactory;
+import org.apache.flink.kubernetes.operator.reconciler.sessionjob.FlinkSessionJobReconciler;
 import org.apache.flink.kubernetes.operator.utils.StatusHelper;
 import org.apache.flink.kubernetes.operator.utils.ValidatorUtils;
 import org.apache.flink.metrics.testutils.MetricListener;
@@ -131,6 +132,10 @@ public static FlinkSessionJob buildSessionJob() {
                 new ObjectMetaBuilder()
                         .withName(TEST_SESSION_JOB_NAME)
                         .withNamespace(TEST_NAMESPACE)
+                        .withLabels(
+                                Map.of(
+                                        FlinkSessionJobReconciler.LABEL_SESSION_CLUSTER,
+                                        TEST_DEPLOYMENT_NAME))
                         .build());
         sessionJob.setSpec(
                 FlinkSessionJobSpec.builder()
diff --git a/flink-kubernetes-operator/src/test/java/org/apache/flink/kubernetes/operator/reconciler/sessionjob/FlinkSessionJobReconcilerTest.java b/flink-kubernetes-operator/src/test/java/org/apache/flink/kubernetes/operator/reconciler/sessionjob/FlinkSessionJobReconcilerTest.java
index 645cf84452..0277e54a96 100644
--- a/flink-kubernetes-operator/src/test/java/org/apache/flink/kubernetes/operator/reconciler/sessionjob/FlinkSessionJobReconcilerTest.java
+++ b/flink-kubernetes-operator/src/test/java/org/apache/flink/kubernetes/operator/reconciler/sessionjob/FlinkSessionJobReconcilerTest.java
@@ -23,12 +23,16 @@
 import org.apache.flink.kubernetes.operator.TestingFlinkService;
 import org.apache.flink.kubernetes.operator.config.FlinkConfigManager;
 import org.apache.flink.kubernetes.operator.config.KubernetesOperatorConfigOptions;
+import org.apache.flink.kubernetes.operator.crd.CrdConstants;
 import org.apache.flink.kubernetes.operator.crd.FlinkSessionJob;
 import org.apache.flink.kubernetes.operator.crd.spec.JobState;
 import org.apache.flink.kubernetes.operator.crd.spec.UpgradeMode;
 import org.apache.flink.kubernetes.operator.crd.status.JobStatus;
 import org.apache.flink.kubernetes.operator.reconciler.ReconciliationUtils;
 
+import io.fabric8.kubernetes.client.KubernetesClient;
+import io.fabric8.kubernetes.client.server.mock.EnableKubernetesMockClient;
+import io.fabric8.kubernetes.client.server.mock.KubernetesMockServer;
 import io.javaoperatorsdk.operator.api.reconciler.Context;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
@@ -43,9 +47,12 @@
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 /** Tests for {@link FlinkSessionJobReconciler}. */
+@EnableKubernetesMockClient(crud = true)
 public class FlinkSessionJobReconcilerTest {
 
     private final FlinkConfigManager configManager = new FlinkConfigManager(new Configuration());
+    private KubernetesMockServer mockServer;
+    private KubernetesClient kubernetesClient;
 
     @Test
     public void testSubmitAndCleanUp() throws Exception {
@@ -420,4 +427,33 @@ public void testJobUpgradeIgnorePendingSavepoint() throws Exception {
                 spSessionJob.getStatus().getJobStatus().getSavepointInfo().getTriggerId());
         assertEquals(JobState.SUSPENDED.name(), spSessionJob.getStatus().getJobStatus().getState());
     }
+
+    @Test
+    public void testSetSessionLabel() throws Exception {
+        TestingFlinkService flinkService = new TestingFlinkService();
+        FlinkSessionJob sessionJob = TestUtils.buildSessionJob();
+        sessionJob.getMetadata().getLabels().clear();
+
+        FlinkSessionJobReconciler reconciler =
+                new FlinkSessionJobReconciler(kubernetesClient, flinkService, configManager);
+
+        var path =
+                String.format(
+                        "/apis/%s/%s/namespaces/%s/%s/%s",
+                        CrdConstants.API_GROUP,
+                        CrdConstants.API_VERSION,
+                        sessionJob.getMetadata().getNamespace(),
+                        sessionJob.getPlural(),
+                        sessionJob.getMetadata().getName());
+
+        mockServer.expect().get().withPath(path).andReturn(200, sessionJob).once();
+        mockServer.expect().patch().withPath(path).andReturn(200, sessionJob).once();
+        reconciler.reconcile(sessionJob, TestUtils.createEmptyContext());
+        Assertions.assertEquals(
+                TestUtils.TEST_DEPLOYMENT_NAME,
+                sessionJob
+                        .getMetadata()
+                        .getLabels()
+                        .get(FlinkSessionJobReconciler.LABEL_SESSION_CLUSTER));
+    }
 }