diff --git a/common/src/test/java/org/apache/rocketmq/common/protocol/route/TopicRouteDataTest.java b/common/src/test/java/org/apache/rocketmq/common/protocol/route/TopicRouteDataTest.java
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+++ b/common/src/test/java/org/apache/rocketmq/common/protocol/route/TopicRouteDataTest.java
@@ -0,0 +1,111 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.rocketmq.common.protocol;
+
+
+import org.apache.rocketmq.common.protocol.route.BrokerData;
+import org.apache.rocketmq.common.protocol.route.QueueData;
+import org.apache.rocketmq.common.protocol.route.TopicRouteData;
+import org.apache.rocketmq.remoting.protocol.RemotingSerializable;
+import org.junit.Test;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.within;
+
+
+public class TopicRouteDataTest {
+    @Test
+    public void testTopicRouteDataClone() throws Exception {
+
+        TopicRouteData topicRouteData = new TopicRouteData();
+
+        QueueData queueData = new QueueData();
+        queueData.setBrokerName("broker-a");
+        queueData.setPerm(6);
+        queueData.setReadQueueNums(8);
+        queueData.setWriteQueueNums(8);
+        queueData.setTopicSynFlag(0);
+
+        List<QueueData> queueDataList = new ArrayList<QueueData>();
+        queueDataList.add(queueData);
+
+        HashMap<Long, String> brokerAddrs = new HashMap<Long, String>();
+        brokerAddrs.put(0L, "192.168.0.47:10911");
+        brokerAddrs.put(1L, "192.168.0.47:10921");
+
+        BrokerData brokerData = new BrokerData();
+        brokerData.setBrokerAddrs(brokerAddrs);
+        brokerData.setBrokerName("broker-a");
+        brokerData.setCluster("TestCluster");
+
+        List<BrokerData> brokerDataList = new ArrayList<BrokerData>();
+        brokerDataList.add(brokerData);
+
+        topicRouteData.setBrokerDatas(brokerDataList);
+        topicRouteData.setFilterServerTable(new HashMap<String, List<String>>());
+        topicRouteData.setQueueDatas(queueDataList);
+
+        assertThat(topicRouteData.cloneTopicRouteData()).isEqualTo(topicRouteData);
+
+    }
+
+    @Test
+    public void testTopicRouteDataJsonSerialize() throws Exception {
+
+        TopicRouteData topicRouteData = new TopicRouteData();
+
+        QueueData queueData = new QueueData();
+        queueData.setBrokerName("broker-a");
+        queueData.setPerm(6);
+        queueData.setReadQueueNums(8);
+        queueData.setWriteQueueNums(8);
+        queueData.setTopicSynFlag(0);
+
+        List<QueueData> queueDataList = new ArrayList<QueueData>();
+        queueDataList.add(queueData);
+
+        HashMap<Long, String> brokerAddrs = new HashMap<Long, String>();
+        brokerAddrs.put(0L, "192.168.0.47:10911");
+        brokerAddrs.put(1L, "192.168.0.47:10921");
+
+        BrokerData brokerData = new BrokerData();
+        brokerData.setBrokerAddrs(brokerAddrs);
+        brokerData.setBrokerName("broker-a");
+        brokerData.setCluster("TestCluster");
+
+        List<BrokerData> brokerDataList = new ArrayList<BrokerData>();
+        brokerDataList.add(brokerData);
+
+        topicRouteData.setBrokerDatas(brokerDataList);
+        topicRouteData.setFilterServerTable(new HashMap<String, List<String>>());
+        topicRouteData.setQueueDatas(queueDataList);
+
+        String topicRouteDataJsonStr = RemotingSerializable.toJson(topicRouteData, true);
+        TopicRouteData topicRouteDataFromJson = RemotingSerializable.fromJson(topicRouteDataJsonStr, TopicRouteData.class);
+
+        assertThat(topicRouteDataJsonStr).isNotEqualTo(topicRouteDataFromJson);
+        assertThat(topicRouteDataFromJson.getBrokerDatas()).isEqualTo(topicRouteData.getBrokerDatas());
+        assertThat(topicRouteDataFromJson.getFilterServerTable()).isEqualTo(topicRouteData.getFilterServerTable());
+        assertThat(topicRouteDataFromJson.getQueueDatas()).isEqualTo(topicRouteData.getQueueDatas());
+
+    }
+}