diff --git a/alerter/src/test/java/org/apache/hertzbeat/alert/controller/AlertSilenceControllerTest.java b/alerter/src/test/java/org/apache/hertzbeat/alert/controller/AlertSilenceControllerTest.java
new file mode 100644
index 00000000000..b31415f275a
--- /dev/null
+++ b/alerter/src/test/java/org/apache/hertzbeat/alert/controller/AlertSilenceControllerTest.java
@@ -0,0 +1,124 @@
+/*
+ * 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.hertzbeat.alert.controller;
+
+import org.apache.hertzbeat.alert.service.AlertSilenceService;
+import org.apache.hertzbeat.common.constants.CommonConstants;
+import org.apache.hertzbeat.common.entity.alerter.AlertSilence;
+import org.apache.hertzbeat.common.util.JsonUtil;
+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.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.when;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.put;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+import static org.springframework.test.web.servlet.setup.MockMvcBuilders.standaloneSetup;
+
+/**
+ * tes case for {@link AlertSilenceController}
+ */
+
+@ExtendWith(MockitoExtension.class)
+class AlertSilenceControllerTest {
+
+	private MockMvc mockMvc;
+
+	@Mock
+	private AlertSilenceService alertSilenceService;
+
+	private AlertSilence alertSilence;
+
+	@InjectMocks
+	private AlertSilenceController alertSilenceController;
+
+	@BeforeEach
+	void setUp() {
+
+		this.mockMvc = standaloneSetup(alertSilenceController).build();
+
+		alertSilence = AlertSilence.builder()
+				.id(1L)
+				.name("Test Silence")
+				.type((byte) 1)
+				.build();
+	}
+
+	@Test
+	void testAddNewAlertSilence() throws Exception {
+
+		doNothing().when(alertSilenceService).validate(any(AlertSilence.class), eq(false));
+		doNothing().when(alertSilenceService).addAlertSilence(any(AlertSilence.class));
+
+		mockMvc.perform(post("/api/alert/silence")
+						.contentType(MediaType.APPLICATION_JSON)
+						.content(JsonUtil.toJson(alertSilence)))
+				.andExpect(status().isOk())
+				.andExpect(jsonPath("$.code").value((int) CommonConstants.SUCCESS_CODE));
+	}
+
+	@Test
+	void testModifyAlertSilence() throws Exception {
+
+		doNothing().when(alertSilenceService).validate(any(AlertSilence.class), eq(true));
+		doNothing().when(alertSilenceService).modifyAlertSilence(any(AlertSilence.class));
+
+		mockMvc.perform(put("/api/alert/silence")
+						.contentType(MediaType.APPLICATION_JSON)
+						.content(JsonUtil.toJson(alertSilence)))
+				.andExpect(status().isOk())
+				.andExpect(jsonPath("$.code").value((int) CommonConstants.SUCCESS_CODE));
+	}
+
+	@Test
+	void testGetAlertSilence() throws Exception {
+
+		when(alertSilenceService.getAlertSilence(1L)).thenReturn(alertSilence);
+
+		mockMvc.perform(get("/api/alert/silence/1")
+						.accept(MediaType.APPLICATION_JSON))
+				.andExpect(status().isOk())
+				.andExpect(jsonPath("$.data.id").value(1))
+				.andExpect(jsonPath("$.data.name").value("Test Silence"));
+	}
+
+	@Test
+	void testGetAlertSilenceNotExists() throws Exception {
+
+		when(alertSilenceService.getAlertSilence(1L)).thenReturn(null);
+
+		mockMvc.perform(get("/api/alert/silence/1")
+						.accept(MediaType.APPLICATION_JSON))
+				.andExpect(status().isOk())
+				.andExpect(jsonPath("$.code").value((int) CommonConstants.MONITOR_NOT_EXIST_CODE))
+				.andExpect(jsonPath("$.msg").value("AlertSilence not exist."));
+	}
+
+}