diff --git a/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/controller/AlertPluginInstanceControllerTest.java b/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/controller/AlertPluginInstanceControllerTest.java
new file mode 100644
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--- /dev/null
+++ b/dolphinscheduler-api/src/test/java/org/apache/dolphinscheduler/api/controller/AlertPluginInstanceControllerTest.java
@@ -0,0 +1,272 @@
+/*
+ * 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.dolphinscheduler.api.controller;
+
+import com.google.common.collect.ImmutableMap;
+import org.apache.dolphinscheduler.api.enums.Status;
+import org.apache.dolphinscheduler.api.service.AlertPluginInstanceService;
+import org.apache.dolphinscheduler.api.utils.Result;
+import org.apache.dolphinscheduler.common.Constants;
+import org.apache.dolphinscheduler.common.utils.JSONUtils;
+import org.apache.dolphinscheduler.dao.entity.User;
+import org.junit.Test;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MvcResult;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+
+import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.when;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+/**
+ * alert plugin instance controller test
+ */
+public class AlertPluginInstanceControllerTest extends AbstractControllerTest {
+    private static final int pluginDefineId = 1;
+    private static final String instanceName = "instanceName";
+    private static final String pluginInstanceParams = "pluginInstanceParams";
+    private static final Result expectResponseContent = JSONUtils.parseObject(
+            "{\"code\":0,\"msg\":\"success\",\"data\":\"Test Data\",\"success\":true,\"failed\":false}"
+            , Result.class);
+    private static final ImmutableMap<String, Object> alertPluginInstanceServiceResult =
+            ImmutableMap.of(Constants.STATUS, Status.SUCCESS, Constants.DATA_LIST, "Test Data");
+    
+    @MockBean(name = "alertPluginInstanceServiceImpl")
+    private AlertPluginInstanceService alertPluginInstanceService;
+    
+    @Test
+    public void testCreateAlertPluginInstance() throws Exception {
+        //Given
+        final MultiValueMap<String, String> paramsMap = new LinkedMultiValueMap<>();
+        paramsMap.add("pluginDefineId", String.valueOf(pluginDefineId));
+        paramsMap.add("instanceName", instanceName);
+        paramsMap.add("pluginInstanceParams", pluginInstanceParams);
+        
+        when(alertPluginInstanceService.create(any(User.class), eq(pluginDefineId), eq(instanceName), eq(pluginInstanceParams)))
+                .thenReturn(alertPluginInstanceServiceResult);
+        
+        //When
+        final MvcResult mvcResult = mockMvc.perform(post("/alert-plugin-instances")
+                        .header(SESSION_ID, sessionId)
+                        .params(paramsMap))
+                .andExpect(status().isCreated())
+                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+                .andReturn();
+        
+        //Then
+        final Result actualResponseContent = JSONUtils.parseObject(mvcResult.getResponse().getContentAsString(), Result.class);
+        assertThat(actualResponseContent.toString()).isEqualTo(expectResponseContent.toString());
+    }
+    
+    @Test
+    public void testUpdateAlertPluginInstance() throws Exception {
+        //Given
+        final MultiValueMap<String, String> paramsMap = new LinkedMultiValueMap<>();
+        paramsMap.add("pluginDefineId", String.valueOf(pluginDefineId));
+        paramsMap.add("instanceName", instanceName);
+        paramsMap.add("pluginInstanceParams", pluginInstanceParams);
+        
+        when(alertPluginInstanceService.update(any(User.class), eq(pluginDefineId), eq(instanceName), eq(pluginInstanceParams)))
+                .thenReturn(alertPluginInstanceServiceResult);
+        
+        //When
+        final MvcResult mvcResult = mockMvc.perform(put("/alert-plugin-instances/{id}", pluginDefineId)
+                        .header(SESSION_ID, sessionId)
+                        .params(paramsMap))
+                .andExpect(status().isOk())
+                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+                .andReturn();
+        
+        //Then
+        final Result actualResponseContent = JSONUtils.parseObject(mvcResult.getResponse().getContentAsString(), Result.class);
+        assertThat(actualResponseContent.toString()).isEqualTo(expectResponseContent.toString());
+    }
+    
+    @Test
+    public void testDeleteAlertPluginInstance() throws Exception {
+        //Given
+        final MultiValueMap<String, String> paramsMap = new LinkedMultiValueMap<>();
+        paramsMap.add("pluginDefineId", String.valueOf(pluginDefineId));
+        paramsMap.add("instanceName", instanceName);
+        paramsMap.add("pluginInstanceParams", pluginInstanceParams);
+        
+        when(alertPluginInstanceService.delete(any(User.class), eq(pluginDefineId)))
+                .thenReturn(alertPluginInstanceServiceResult);
+        
+        //When
+        final MvcResult mvcResult = mockMvc.perform(delete("/alert-plugin-instances/{id}", pluginDefineId)
+                        .header(SESSION_ID, sessionId)
+                        .params(paramsMap))
+                .andExpect(status().isOk())
+                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+                .andReturn();
+        
+        //Then
+        final Result actualResponseContent = JSONUtils.parseObject(mvcResult.getResponse().getContentAsString(), Result.class);
+        assertThat(actualResponseContent.toString()).isEqualTo(expectResponseContent.toString());
+    }
+    
+    @Test
+    public void testGetAlertPluginInstance() throws Exception {
+        //Given
+        final MultiValueMap<String, String> paramsMap = new LinkedMultiValueMap<>();
+        paramsMap.add("pluginDefineId", String.valueOf(pluginDefineId));
+        
+        when(alertPluginInstanceService.get(any(User.class), eq(pluginDefineId)))
+                .thenReturn(alertPluginInstanceServiceResult);
+        
+        //When
+        final MvcResult mvcResult = mockMvc.perform(get("/alert-plugin-instances/{id}", pluginDefineId)
+                        .header(SESSION_ID, sessionId)
+                        .params(paramsMap))
+                .andExpect(status().isOk())
+                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+                .andReturn();
+        
+        //Then
+        final Result actualResponseContent = JSONUtils.parseObject(mvcResult.getResponse().getContentAsString(), Result.class);
+        assertThat(actualResponseContent.toString()).isEqualTo(expectResponseContent.toString());
+    }
+    
+    @Test
+    public void testGetAlertPluginInstanceList() throws Exception {
+        //Given
+        when(alertPluginInstanceService.queryAll())
+                .thenReturn(alertPluginInstanceServiceResult);
+        
+        //When
+        final MvcResult mvcResult = mockMvc.perform(get("/alert-plugin-instances/list")
+                        .header(SESSION_ID, sessionId))
+                .andExpect(status().isOk())
+                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+                .andReturn();
+        
+        //Then
+        final Result actualResponseContent = JSONUtils.parseObject(mvcResult.getResponse().getContentAsString(), Result.class);
+        assertThat(actualResponseContent.toString()).isEqualTo(expectResponseContent.toString());
+    }
+    
+    @Test
+    public void testVerifyGroupName() throws Exception {
+        //Given
+        final MultiValueMap<String, String> paramsMap = new LinkedMultiValueMap<>();
+        paramsMap.add("pluginDefineId", String.valueOf(pluginDefineId));
+        paramsMap.add("alertInstanceName", instanceName);
+        
+        when(alertPluginInstanceService.checkExistPluginInstanceName(eq(instanceName)))
+                .thenReturn(false);
+        
+        Result expectResponseContent = JSONUtils.parseObject("{\"code\":0,\"msg\":\"success\",\"data\":null,\"failed\":false,\"success\":true}"
+                , Result.class);
+        
+        //When
+        final MvcResult mvcResult = mockMvc.perform(get("/alert-plugin-instances/verify-name")
+                        .header(SESSION_ID, sessionId)
+                        .params(paramsMap))
+                .andExpect(status().isOk())
+                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+                .andReturn();
+        
+        //Then
+        final Result actualResponseContent = JSONUtils.parseObject(mvcResult.getResponse().getContentAsString(), Result.class);
+        assertThat(actualResponseContent.toString()).isEqualTo(expectResponseContent.toString());
+    }
+    
+    @Test
+    public void testVerifyGroupNamePluginInstanceNameExist() throws Exception {
+        //Given
+        final MultiValueMap<String, String> paramsMap = new LinkedMultiValueMap<>();
+        paramsMap.add("pluginDefineId", String.valueOf(pluginDefineId));
+        paramsMap.add("alertInstanceName", instanceName);
+        
+        when(alertPluginInstanceService.checkExistPluginInstanceName(eq(instanceName)))
+                .thenReturn(true);
+        
+        Result expectResponseContent = JSONUtils.parseObject("{\"code\":110010,\"msg\":\"plugin instance already exit\",\"data\":null,\"failed\":true,\"success\":false}"
+                , Result.class);
+        
+        //When
+        final MvcResult mvcResult = mockMvc.perform(get("/alert-plugin-instances/verify-name")
+                        .header(SESSION_ID, sessionId)
+                        .params(paramsMap))
+                .andExpect(status().isOk())
+                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+                .andReturn();
+        
+        //Then
+        final Result actualResponseContent = JSONUtils.parseObject(mvcResult.getResponse().getContentAsString(), Result.class);
+        assertThat(actualResponseContent.toString()).isEqualTo(expectResponseContent.toString());
+    }
+    
+    @Test
+    public void testListPaging() throws Exception {
+        //Given
+        Result result = JSONUtils.parseObject("{\"code\":0,\"msg\":\"success\",\"data\":\"Test Data\",\"success\":true,\"failed\":false}", Result.class);
+        
+        final MultiValueMap<String, String> paramsMap = new LinkedMultiValueMap<>();
+        paramsMap.add("pluginDefineId", String.valueOf(pluginDefineId));
+        paramsMap.add("searchVal", "searchVal");
+        paramsMap.add("pageNo", String.valueOf(1));
+        paramsMap.add("pageSize", String.valueOf(10));
+        
+        when(alertPluginInstanceService.listPaging(eq(user), eq("searchVal"), eq(1), eq(10)))
+                .thenReturn(result);
+        
+        //When
+        final MvcResult mvcResult = mockMvc.perform(get("/alert-plugin-instances")
+                        .header(SESSION_ID, sessionId)
+                        .params(paramsMap))
+                .andExpect(status().isOk())
+                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+                .andReturn();
+        
+        //Then
+        final Result actualResponseContent = JSONUtils.parseObject(mvcResult.getResponse().getContentAsString(), Result.class);
+        assertThat(actualResponseContent.toString()).isEqualTo(expectResponseContent.toString());
+    }
+    
+    @Test
+    public void testListPagingResultFalse() throws Exception {
+        //Given
+        final Result expectResponseContent = JSONUtils.parseObject("{\"code\":10001,\"msg\":\"request parameter pageNo is not valid\",\"data\":null,\"success\":false,\"failed\":true}", Result.class);
+        
+        final MultiValueMap<String, String> paramsMap = new LinkedMultiValueMap<>();
+        paramsMap.add("pluginDefineId", String.valueOf(pluginDefineId));
+        paramsMap.add("searchVal", "searchVal");
+        paramsMap.add("pageNo", String.valueOf(0));
+        paramsMap.add("pageSize", String.valueOf(0));
+        
+        //When
+        final MvcResult mvcResult = mockMvc.perform(get("/alert-plugin-instances")
+                        .header(SESSION_ID, sessionId)
+                        .params(paramsMap))
+                .andExpect(status().isOk())
+                .andExpect(content().contentType(MediaType.APPLICATION_JSON))
+                .andReturn();
+        
+        //Then
+        final Result actualResponseContent = JSONUtils.parseObject(mvcResult.getResponse().getContentAsString(), Result.class);
+        assertThat(actualResponseContent.toString()).isEqualTo(expectResponseContent.toString());
+    }
+}