diff --git a/broker/src/test/java/org/apache/rocketmq/broker/metrics/BrokerMetricsManagerTest.java b/broker/src/test/java/org/apache/rocketmq/broker/metrics/BrokerMetricsManagerTest.java
index 11f7ae8215a..9264eb4b56b 100644
--- a/broker/src/test/java/org/apache/rocketmq/broker/metrics/BrokerMetricsManagerTest.java
+++ b/broker/src/test/java/org/apache/rocketmq/broker/metrics/BrokerMetricsManagerTest.java
@@ -20,8 +20,25 @@
 import io.opentelemetry.api.common.AttributeKey;
 import io.opentelemetry.api.common.Attributes;
 import io.opentelemetry.api.common.AttributesBuilder;
+import org.apache.rocketmq.broker.BrokerController;
+import org.apache.rocketmq.common.BrokerConfig;
+import org.apache.rocketmq.common.MixAll;
+import org.apache.rocketmq.common.attribute.TopicMessageType;
+import org.apache.rocketmq.common.message.MessageConst;
+import org.apache.rocketmq.common.message.MessageDecoder;
+import org.apache.rocketmq.common.metrics.MetricsExporterType;
+import org.apache.rocketmq.common.topic.TopicValidator;
+import org.apache.rocketmq.remoting.netty.NettyClientConfig;
+import org.apache.rocketmq.remoting.netty.NettyServerConfig;
+import org.apache.rocketmq.remoting.protocol.header.SendMessageRequestHeader;
+import org.apache.rocketmq.store.config.MessageStoreConfig;
 import org.junit.Test;
 
+import java.io.File;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
 import static org.assertj.core.api.Assertions.assertThat;
 
 public class BrokerMetricsManagerTest {
@@ -29,7 +46,7 @@ public class BrokerMetricsManagerTest {
     @Test
     public void testNewAttributesBuilder() {
         Attributes attributes = BrokerMetricsManager.newAttributesBuilder().put("a", "b")
-            .build();
+                .build();
         assertThat(attributes.get(AttributeKey.stringKey("a"))).isEqualTo("b");
     }
 
@@ -37,6 +54,7 @@ public void testNewAttributesBuilder() {
     public void testCustomizedAttributesBuilder() {
         BrokerMetricsManager.attributesBuilderSupplier = () -> new AttributesBuilder() {
             private AttributesBuilder attributesBuilder = Attributes.builder();
+
             @Override
             public Attributes build() {
                 return attributesBuilder.put("customized", "value").build();
@@ -61,8 +79,263 @@ public AttributesBuilder putAll(Attributes attributes) {
             }
         };
         Attributes attributes = BrokerMetricsManager.newAttributesBuilder().put("a", "b")
-            .build();
+                .build();
         assertThat(attributes.get(AttributeKey.stringKey("a"))).isEqualTo("b");
         assertThat(attributes.get(AttributeKey.stringKey("customized"))).isEqualTo("value");
     }
+
+
+    @Test
+    public void testIsRetryOrDlqTopicWithRetryTopic() {
+        String topic = MixAll.RETRY_GROUP_TOPIC_PREFIX + "TestTopic";
+        boolean result = BrokerMetricsManager.isRetryOrDlqTopic(topic);
+        assertThat(result).isTrue();
+    }
+
+    @Test
+    public void testIsRetryOrDlqTopicWithDlqTopic() {
+        String topic = MixAll.DLQ_GROUP_TOPIC_PREFIX + "TestTopic";
+        boolean result = BrokerMetricsManager.isRetryOrDlqTopic(topic);
+        assertThat(result).isTrue();
+    }
+
+    @Test
+    public void testIsRetryOrDlqTopicWithNonRetryOrDlqTopic() {
+        String topic = "NormalTopic";
+        boolean result = BrokerMetricsManager.isRetryOrDlqTopic(topic);
+        assertThat(result).isFalse();
+    }
+
+    @Test
+    public void testIsRetryOrDlqTopicWithEmptyTopic() {
+        String topic = "";
+        boolean result = BrokerMetricsManager.isRetryOrDlqTopic(topic);
+        assertThat(result).isFalse();
+    }
+
+    @Test
+    public void testIsRetryOrDlqTopicWithNullTopic() {
+        String topic = null;
+        boolean result = BrokerMetricsManager.isRetryOrDlqTopic(topic);
+        assertThat(result).isFalse();
+    }
+
+    @Test
+    public void testIsSystemGroup_SystemGroup_ReturnsTrue() {
+        String group = "FooGroup";
+        String systemGroup = MixAll.CID_RMQ_SYS_PREFIX + group;
+        boolean result = BrokerMetricsManager.isSystemGroup(systemGroup);
+        assertThat(result).isTrue();
+    }
+
+    @Test
+    public void testIsSystemGroup_NonSystemGroup_ReturnsFalse() {
+        String group = "FooGroup";
+        boolean result = BrokerMetricsManager.isSystemGroup(group);
+        assertThat(result).isFalse();
+    }
+
+    @Test
+    public void testIsSystemGroup_EmptyGroup_ReturnsFalse() {
+        String group = "";
+        boolean result = BrokerMetricsManager.isSystemGroup(group);
+        assertThat(result).isFalse();
+    }
+
+    @Test
+    public void testIsSystemGroup_NullGroup_ReturnsFalse() {
+        String group = null;
+        boolean result = BrokerMetricsManager.isSystemGroup(group);
+        assertThat(result).isFalse();
+    }
+
+    @Test
+    public void testIsSystem_SystemTopicOrSystemGroup_ReturnsTrue() {
+        String topic = "FooTopic";
+        String group = "FooGroup";
+        String systemTopic = TopicValidator.RMQ_SYS_TRANS_HALF_TOPIC;
+        String systemGroup = MixAll.CID_RMQ_SYS_PREFIX + group;
+
+        boolean resultTopic = BrokerMetricsManager.isSystem(systemTopic, group);
+        assertThat(resultTopic).isTrue();
+
+        boolean resultGroup = BrokerMetricsManager.isSystem(topic, systemGroup);
+        assertThat(resultGroup).isTrue();
+    }
+
+    @Test
+    public void testIsSystem_NonSystemTopicAndGroup_ReturnsFalse() {
+        String topic = "FooTopic";
+        String group = "FooGroup";
+        boolean result = BrokerMetricsManager.isSystem(topic, group);
+        assertThat(result).isFalse();
+    }
+
+    @Test
+    public void testIsSystem_EmptyTopicAndGroup_ReturnsFalse() {
+        String topic = "";
+        String group = "";
+        boolean result = BrokerMetricsManager.isSystem(topic, group);
+        assertThat(result).isFalse();
+    }
+
+    @Test
+    public void testGetMessageTypeAsNormal() {
+        SendMessageRequestHeader requestHeader = new SendMessageRequestHeader();
+        requestHeader.setProperties("");
+
+        TopicMessageType result = BrokerMetricsManager.getMessageType(requestHeader);
+        assertThat(TopicMessageType.NORMAL).isEqualTo(result);
+    }
+
+    @Test
+    public void testGetMessageTypeAsTransaction() {
+        SendMessageRequestHeader requestHeader = new SendMessageRequestHeader();
+
+        Map<String, String> map = new HashMap<>();
+        map.put(MessageConst.PROPERTY_TRANSACTION_PREPARED, "true");
+        requestHeader.setProperties(MessageDecoder.messageProperties2String(map));
+
+        TopicMessageType result = BrokerMetricsManager.getMessageType(requestHeader);
+        assertThat(TopicMessageType.TRANSACTION).isEqualTo(result);
+    }
+
+    @Test
+    public void testGetMessageTypeAsFifo() {
+        SendMessageRequestHeader requestHeader = new SendMessageRequestHeader();
+        Map<String, String> map = new HashMap<>();
+        map.put(MessageConst.PROPERTY_SHARDING_KEY, "shardingKey");
+        requestHeader.setProperties(MessageDecoder.messageProperties2String(map));
+
+        TopicMessageType result = BrokerMetricsManager.getMessageType(requestHeader);
+        assertThat(TopicMessageType.FIFO).isEqualTo(result);
+    }
+
+    @Test
+    public void testGetMessageTypeAsDelayLevel() {
+        SendMessageRequestHeader requestHeader = new SendMessageRequestHeader();
+        Map<String, String> map = new HashMap<>();
+        map.put(MessageConst.PROPERTY_DELAY_TIME_LEVEL, "1");
+        requestHeader.setProperties(MessageDecoder.messageProperties2String(map));
+
+        TopicMessageType result = BrokerMetricsManager.getMessageType(requestHeader);
+        assertThat(TopicMessageType.DELAY).isEqualTo(result);
+    }
+
+    @Test
+    public void testGetMessageTypeAsDeliverMS() {
+        SendMessageRequestHeader requestHeader = new SendMessageRequestHeader();
+        Map<String, String> map = new HashMap<>();
+        map.put(MessageConst.PROPERTY_TIMER_DELIVER_MS, "10");
+        requestHeader.setProperties(MessageDecoder.messageProperties2String(map));
+
+        TopicMessageType result = BrokerMetricsManager.getMessageType(requestHeader);
+        assertThat(TopicMessageType.DELAY).isEqualTo(result);
+    }
+
+    @Test
+    public void testGetMessageTypeAsDelaySEC() {
+        SendMessageRequestHeader requestHeader = new SendMessageRequestHeader();
+        Map<String, String> map = new HashMap<>();
+        map.put(MessageConst.PROPERTY_TIMER_DELAY_SEC, "1");
+        requestHeader.setProperties(MessageDecoder.messageProperties2String(map));
+
+        TopicMessageType result = BrokerMetricsManager.getMessageType(requestHeader);
+        assertThat(TopicMessageType.DELAY).isEqualTo(result);
+    }
+
+    @Test
+    public void testGetMessageTypeAsDelayMS() {
+        SendMessageRequestHeader requestHeader = new SendMessageRequestHeader();
+        Map<String, String> map = new HashMap<>();
+        map.put(MessageConst.PROPERTY_TIMER_DELAY_MS, "10");
+        requestHeader.setProperties(MessageDecoder.messageProperties2String(map));
+
+        TopicMessageType result = BrokerMetricsManager.getMessageType(requestHeader);
+        assertThat(TopicMessageType.DELAY).isEqualTo(result);
+    }
+
+    @Test
+    public void testGetMessageTypeWithUnknownProperty() {
+        SendMessageRequestHeader requestHeader = new SendMessageRequestHeader();
+        Map<String, String> map = new HashMap<>();
+        map.put("unknownProperty", "unknownValue");
+        requestHeader.setProperties(MessageDecoder.messageProperties2String(map));
+
+        TopicMessageType result = BrokerMetricsManager.getMessageType(requestHeader);
+        assertThat(TopicMessageType.NORMAL).isEqualTo(result);
+    }
+
+    @Test
+    public void testGetMessageTypeWithMultipleProperties() {
+        SendMessageRequestHeader requestHeader = new SendMessageRequestHeader();
+        Map<String, String> map = new HashMap<>();
+        map.put(MessageConst.PROPERTY_DELAY_TIME_LEVEL, "1");
+        map.put(MessageConst.PROPERTY_SHARDING_KEY, "shardingKey");
+        requestHeader.setProperties(MessageDecoder.messageProperties2String(map));
+
+        TopicMessageType result = BrokerMetricsManager.getMessageType(requestHeader);
+        assertThat(TopicMessageType.FIFO).isEqualTo(result);
+    }
+
+    @Test
+    public void testGetMessageTypeWithTransactionFlagButOtherPropertiesPresent() {
+        SendMessageRequestHeader requestHeader = new SendMessageRequestHeader();
+        Map<String, String> map = new HashMap<>();
+        map.put(MessageConst.PROPERTY_TRANSACTION_PREPARED, "true");
+        map.put(MessageConst.PROPERTY_SHARDING_KEY, "shardingKey");
+        requestHeader.setProperties(MessageDecoder.messageProperties2String(map));
+
+        TopicMessageType result = BrokerMetricsManager.getMessageType(requestHeader);
+        assertThat(TopicMessageType.TRANSACTION).isEqualTo(result);
+    }
+
+    @Test
+    public void testGetMessageTypeWithEmptyProperties() {
+        TopicMessageType result = BrokerMetricsManager.getMessageType(new SendMessageRequestHeader());
+        assertThat(TopicMessageType.NORMAL).isEqualTo(result);
+    }
+
+    @Test
+    public void testCreateMetricsManager() {
+        MessageStoreConfig messageStoreConfig = new MessageStoreConfig();
+        String storePathRootDir = System.getProperty("java.io.tmpdir") + File.separator + "store-"
+                + UUID.randomUUID();
+        messageStoreConfig.setStorePathRootDir(storePathRootDir);
+        BrokerConfig brokerConfig = new BrokerConfig();
+
+        NettyServerConfig nettyServerConfig = new NettyServerConfig();
+        nettyServerConfig.setListenPort(0);
+
+        BrokerController brokerController = new BrokerController(brokerConfig, nettyServerConfig,
+                new NettyClientConfig(), messageStoreConfig);
+
+        BrokerMetricsManager metricsManager = new BrokerMetricsManager(brokerController);
+
+        assertThat(metricsManager.getBrokerMeter()).isNull();
+    }
+
+    @Test
+    public void testCreateMetricsManagerLogType() throws CloneNotSupportedException {
+        BrokerConfig brokerConfig = new BrokerConfig();
+        brokerConfig.setMetricsExporterType(MetricsExporterType.LOG);
+        brokerConfig.setMetricsLabel("label1:value1;label2:value2");
+        brokerConfig.setMetricsOtelCardinalityLimit(1);
+
+        MessageStoreConfig messageStoreConfig = new MessageStoreConfig();
+        String storePathRootDir = System.getProperty("java.io.tmpdir") + File.separator + "store-"
+                + UUID.randomUUID();
+        messageStoreConfig.setStorePathRootDir(storePathRootDir);
+
+        NettyServerConfig nettyServerConfig = new NettyServerConfig();
+        nettyServerConfig.setListenPort(0);
+
+        BrokerController brokerController = new BrokerController(brokerConfig, nettyServerConfig,
+                new NettyClientConfig(), messageStoreConfig);
+        brokerController.initialize();
+
+        BrokerMetricsManager metricsManager = new BrokerMetricsManager(brokerController);
+
+        assertThat(metricsManager.getBrokerMeter()).isNotNull();
+    }
 }
\ No newline at end of file