diff --git a/skywalking-alarm/src/main/java/com/ai/cloud/skywalking/alarm/AlarmProcessServer.java b/skywalking-alarm/src/main/java/com/ai/cloud/skywalking/alarm/AlarmProcessServer.java
index a15517300..e27312d31 100644
--- a/skywalking-alarm/src/main/java/com/ai/cloud/skywalking/alarm/AlarmProcessServer.java
+++ b/skywalking-alarm/src/main/java/com/ai/cloud/skywalking/alarm/AlarmProcessServer.java
@@ -38,7 +38,7 @@ public class AlarmProcessServer {
             processThreads.add(tmpThread);
         }
         logger.info("Successfully launched {} processing threads.", Config.Server.PROCESS_THREAD_SIZE);
-        new UserNumberInspectThread().start();
+        new NumberOfUsersChangeDetectionThread().start();
         logger.info("Successfully launched the thread that inspect the number of user");
         logger.info("Alarm process server successfully started.");
         while (true) {
diff --git a/skywalking-alarm/src/main/java/com/ai/cloud/skywalking/alarm/UserNumberInspectThread.java b/skywalking-alarm/src/main/java/com/ai/cloud/skywalking/alarm/NumberOfUsersChangeDetectionThread.java
similarity index 93%
rename from skywalking-alarm/src/main/java/com/ai/cloud/skywalking/alarm/UserNumberInspectThread.java
rename to skywalking-alarm/src/main/java/com/ai/cloud/skywalking/alarm/NumberOfUsersChangeDetectionThread.java
index 3a06aae4c..1d59698db 100644
--- a/skywalking-alarm/src/main/java/com/ai/cloud/skywalking/alarm/UserNumberInspectThread.java
+++ b/skywalking-alarm/src/main/java/com/ai/cloud/skywalking/alarm/NumberOfUsersChangeDetectionThread.java
@@ -11,13 +11,13 @@ import org.apache.logging.log4j.Logger;
 import java.sql.SQLException;
 import java.util.concurrent.TimeUnit;
 
-public class UserNumberInspectThread extends Thread {
+public class NumberOfUsersChangeDetectionThread extends Thread {
 
     private boolean isInspector = false;
     private InterProcessMutex inspectorLock = new InterProcessMutex(ZKUtil.getZkClient(),
             Config.ZKPath.INSPECTOR_LOCK_PATH);
     private String userIdsEncryptedStr;
-    private Logger logger = LogManager.getLogger(UserNumberInspectThread.class);
+    private Logger logger = LogManager.getLogger(NumberOfUsersChangeDetectionThread.class);
 
     public void run() {
         while (true) {