diff --git a/manager/src/main/java/org/apache/hertzbeat/manager/component/alerter/impl/WeComAppAlertNotifyHandlerImpl.java b/manager/src/main/java/org/apache/hertzbeat/manager/component/alerter/impl/WeComAppAlertNotifyHandlerImpl.java
index 62e6ff38dca..6300b718eab 100644
--- a/manager/src/main/java/org/apache/hertzbeat/manager/component/alerter/impl/WeComAppAlertNotifyHandlerImpl.java
+++ b/manager/src/main/java/org/apache/hertzbeat/manager/component/alerter/impl/WeComAppAlertNotifyHandlerImpl.java
@@ -123,7 +123,7 @@ public byte type() {
     @Data
     @AllArgsConstructor
     @NoArgsConstructor
-    private static class WeChatAppReq {
+    protected static class WeChatAppReq {
 
         @JsonProperty(value = "errcode")
         private Integer errCode;
@@ -139,7 +139,7 @@ private static class WeChatAppReq {
     @Builder
     @AllArgsConstructor
     @NoArgsConstructor
-    private static class WeChatAppDTO {
+    protected static class WeChatAppDTO {
 
         /**
          * markdown format
@@ -172,7 +172,7 @@ private static class WeChatAppDTO {
         private MarkdownDTO markdown;
 
         @Data
-        private static class MarkdownDTO {
+        protected static class MarkdownDTO {
             /**
              * message content
              */
@@ -180,7 +180,7 @@ private static class MarkdownDTO {
         }
 
         @Data
-        private static class TextDTO {
+        protected static class TextDTO {
             /**
              * message content
              */
diff --git a/manager/src/test/java/org/apache/hertzbeat/manager/component/alerter/impl/WeComAppAlertNotifyHandlerImplTest.java b/manager/src/test/java/org/apache/hertzbeat/manager/component/alerter/impl/WeComAppAlertNotifyHandlerImplTest.java
index ae66e568803..cd1954719e7 100644
--- a/manager/src/test/java/org/apache/hertzbeat/manager/component/alerter/impl/WeComAppAlertNotifyHandlerImplTest.java
+++ b/manager/src/test/java/org/apache/hertzbeat/manager/component/alerter/impl/WeComAppAlertNotifyHandlerImplTest.java
@@ -17,9 +17,119 @@
 
 package org.apache.hertzbeat.manager.component.alerter.impl;
 
+import java.net.URI;
+
+import org.apache.hertzbeat.common.entity.alerter.Alert;
+import org.apache.hertzbeat.common.entity.manager.NoticeReceiver;
+import org.apache.hertzbeat.common.entity.manager.NoticeTemplate;
+import org.apache.hertzbeat.manager.support.exception.AlertNoticeException;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.client.RestTemplate;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 /**
  * test case for {@link WeComAppAlertNotifyHandlerImpl}
  */
 
+@ExtendWith(MockitoExtension.class)
 class WeComAppAlertNotifyHandlerImplTest {
+
+	@InjectMocks
+	private WeComAppAlertNotifyHandlerImpl weComAppAlertNotifyHandler;
+
+	@Mock
+	private RestTemplate restTemplate;
+
+	private NoticeReceiver receiver;
+
+	private NoticeTemplate noticeTemplate;
+
+	private Alert alert;
+
+	@BeforeEach
+	void setUp() {
+
+		receiver = new NoticeReceiver();
+		receiver.setCorpId("testCorpId");
+		receiver.setAgentId(1000001);
+		receiver.setAppSecret("testAppSecret");
+		receiver.setUserId("testUserId");
+		receiver.setPartyId("testPartyId");
+		receiver.setTagId("testTagId");
+
+		noticeTemplate = mock(NoticeTemplate.class);
+		when(noticeTemplate.getContent()).thenReturn("This is a test notice template.");
+
+		alert = new Alert();
+		alert.setId(1L);
+		alert.setLastAlarmTime(System.currentTimeMillis());
+		alert.setContent("This is a test alert.");
+
+		weComAppAlertNotifyHandler = new WeComAppAlertNotifyHandlerImpl(restTemplate);
+	}
+
+	@Test
+	void testSendSuccess() throws AlertNoticeException {
+
+		WeComAppAlertNotifyHandlerImpl.WeChatAppReq tokenResponse = new WeComAppAlertNotifyHandlerImpl.WeChatAppReq();
+		tokenResponse.setAccessToken("testAccessToken");
+		when(restTemplate.getForEntity(
+				anyString(),
+				eq(WeComAppAlertNotifyHandlerImpl.WeChatAppReq.class)
+		)).thenReturn(ResponseEntity.ok(tokenResponse));
+
+		WeComAppAlertNotifyHandlerImpl.WeChatAppReq sendResponse = new WeComAppAlertNotifyHandlerImpl.WeChatAppReq();
+		sendResponse.setErrCode(0);
+		sendResponse.setErrMsg("ok");
+		when(restTemplate.postForEntity(
+				anyString(),
+				any(HttpEntity.class),
+				eq(WeComAppAlertNotifyHandlerImpl.WeChatAppReq.class)
+		)).thenReturn(ResponseEntity.ok(sendResponse));
+
+		weComAppAlertNotifyHandler.send(receiver, noticeTemplate, alert);
+
+		verify(restTemplate, times(1)).getForEntity(anyString(), eq(WeComAppAlertNotifyHandlerImpl.WeChatAppReq.class));
+		verify(restTemplate, times(1)).postForEntity(anyString(), any(HttpEntity.class), eq(WeComAppAlertNotifyHandlerImpl.WeChatAppReq.class));
+	}
+
+	@Test
+	void testSendFail() {
+
+		WeComAppAlertNotifyHandlerImpl.WeChatAppReq tokenResponse = new WeComAppAlertNotifyHandlerImpl.WeChatAppReq();
+		tokenResponse.setErrCode(40013);
+		tokenResponse.setErrMsg("invalid corpid");
+		when(restTemplate.getForEntity(
+				anyString(),
+				eq(WeComAppAlertNotifyHandlerImpl.WeChatAppReq.class)
+		)).thenReturn(ResponseEntity.ok(tokenResponse));
+
+		Assertions.assertThrows(
+				AlertNoticeException.class,
+				() -> weComAppAlertNotifyHandler.send(receiver, noticeTemplate, alert)
+		);
+
+		verify(restTemplate, never()).postForEntity(
+				any(URI.class),
+				any(HttpEntity.class),
+				eq(WeComAppAlertNotifyHandlerImpl.WeChatAppReq.class)
+		);
+	}
+
 }