diff --git a/test/src/test/java/com/alibaba/nacos/test/naming/RegisterInstance_ITCase.java b/test/src/test/java/com/alibaba/nacos/test/naming/RegisterInstance_ITCase.java
index 7c61ef910..f1c462c7d 100644
--- a/test/src/test/java/com/alibaba/nacos/test/naming/RegisterInstance_ITCase.java
+++ b/test/src/test/java/com/alibaba/nacos/test/naming/RegisterInstance_ITCase.java
@@ -29,7 +29,9 @@ import org.springframework.boot.web.server.LocalServerPort;
 import org.springframework.test.context.junit4.SpringRunner;
 
 import java.util.Arrays;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 import java.util.concurrent.TimeUnit;
 
 import static com.alibaba.nacos.test.naming.NamingBase.*;
@@ -42,31 +44,35 @@ import static com.alibaba.nacos.test.naming.NamingBase.*;
  */
 @RunWith(SpringRunner.class)
 @SpringBootTest(classes = NamingApp.class, properties = {"server.servlet.context-path=/nacos"},
-    webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+        webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
 public class RegisterInstance_ITCase {
 
     private NamingService naming;
     private NamingService naming2;
     @LocalServerPort
     private int port;
+
     @Before
-    public void init() throws Exception{
+    public void init() throws Exception {
         if (naming == null) {
             TimeUnit.SECONDS.sleep(10);
-            naming = NamingFactory.createNamingService("127.0.0.1"+":"+port);
+            naming = NamingFactory.createNamingService("127.0.0.1" + ":" + port);
         }
     }
 
     /**
      * 注册一个默认cluster的Instance，并验证
+     *
      * @throws Exception
      */
     @Test
-    public void regDomTest() throws Exception{
+    public void regDomTest() throws Exception {
         String serviceName = randomDomainName();
 
         naming.registerInstance(serviceName, TEST_IP_4_DOM_1, TEST_PORT);
 
+        System.out.println(serviceName);
+
         TimeUnit.SECONDS.sleep(3);
 
         List<Instance> instances = naming.getAllInstances(serviceName);
@@ -80,10 +86,11 @@ public class RegisterInstance_ITCase {
 
     /**
      * 注册一个自定义cluster的Instance，并验证
+     *
      * @throws Exception
      */
     @Test
-    public void regDomClusterTest() throws Exception{
+    public void regDomClusterTest() throws Exception {
         String serviceName = randomDomainName();
 
         naming.registerInstance(serviceName, TEST_IP_4_DOM_1, TEST_PORT, TEST_NEW_CLUSTER_4_DOM_1);
@@ -111,6 +118,7 @@ public class RegisterInstance_ITCase {
 
     /**
      * 注册一个自定义的Instance，并验证
+     *
      * @throws Exception
      */
     @Test
@@ -132,6 +140,7 @@ public class RegisterInstance_ITCase {
 
     /**
      * 注册一个不健康的Instance，并验证
+     *
      * @throws Exception
      */
     @Test
@@ -145,9 +154,34 @@ public class RegisterInstance_ITCase {
 
         TimeUnit.SECONDS.sleep(3);
 
-        List<Instance> instances = naming.selectInstances(serviceName,false);
+        List<Instance> instances = naming.selectInstances(serviceName, false);
 
         Assert.assertEquals(instances.size(), 1);
         Assert.assertEquals(instances.get(0).isHealthy(), false);
     }
+
+    @Test
+    public void regServiceWithMetadata() throws Exception {
+
+        String serviceName = randomDomainName();
+        System.out.println(serviceName);
+
+        Instance instance = new Instance();
+        instance.setIp("1.1.1.2");
+        instance.setPort(9999);
+        Map<String, String> metadata = new HashMap<String, String>();
+        metadata.put("version", "1.0");
+        metadata.put("env", "prod");
+        instance.setMetadata(metadata);
+
+        naming.registerInstance(serviceName, instance);
+
+        TimeUnit.SECONDS.sleep(3);
+
+        List<Instance> instances = naming.getAllInstances(serviceName);
+
+        Assert.assertEquals(1, instances.size());
+        Assert.assertEquals("1.0", instances.get(0).getMetadata().get("version"));
+        Assert.assertEquals("prod", instances.get(0).getMetadata().get("env"));
+    }
 }