diff --git a/backend/mci-server/src/main/java/com/sino/mci/admin/security/AuthInterceptor.java b/backend/mci-server/src/main/java/com/sino/mci/admin/security/AuthInterceptor.java
index 815e811..223b930 100644
--- a/backend/mci-server/src/main/java/com/sino/mci/admin/security/AuthInterceptor.java
+++ b/backend/mci-server/src/main/java/com/sino/mci/admin/security/AuthInterceptor.java
@@ -18,7 +18,8 @@ public class AuthInterceptor implements HandlerInterceptor {
                 || ("POST".equals(method) && isExactPath(path, "/api/v1/account/tenant"))
                 || ("POST".equals(method) && isExactPath(path, "/api/v1/account/user"))
                 || isExactPath(path, "/api/v1/health")
-                || ("POST".equals(method) && isExactPath(path, "/api/v1/channel-account/heartbeat"))) {
+                || ("POST".equals(method) && isExactPath(path, "/api/v1/channel-account/heartbeat"))
+                || ("POST".equals(method) && isExactPath(path, "/api/v1/channel-account/event"))) {
             return true;
         }
 
diff --git a/backend/mci-server/src/main/java/com/sino/mci/channel/controller/ChannelAccountEventController.java b/backend/mci-server/src/main/java/com/sino/mci/channel/controller/ChannelAccountEventController.java
new file mode 100644
index 0000000..d2cc507
--- /dev/null
+++ b/backend/mci-server/src/main/java/com/sino/mci/channel/controller/ChannelAccountEventController.java
@@ -0,0 +1,25 @@
+package com.sino.mci.channel.controller;
+
+import com.sino.mci.channel.dto.ChannelAccountEventRequest;
+import com.sino.mci.channel.service.ChannelAccountEventService;
+import com.sino.mci.shared.web.ApiResponse;
+import jakarta.validation.Valid;
+import lombok.RequiredArgsConstructor;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/v1/channel-account")
+@RequiredArgsConstructor
+public class ChannelAccountEventController {
+
+    private final ChannelAccountEventService eventService;
+
+    @PostMapping("/event")
+    public ApiResponse<?> receiveEvent(@Valid @RequestBody ChannelAccountEventRequest request) {
+        eventService.handleEvent(request);
+        return ApiResponse.ok(null);
+    }
+}
diff --git a/backend/mci-server/src/test/java/com/sino/mci/channel/controller/ChannelAccountEventControllerTest.java b/backend/mci-server/src/test/java/com/sino/mci/channel/controller/ChannelAccountEventControllerTest.java
new file mode 100644
index 0000000..9430216
--- /dev/null
+++ b/backend/mci-server/src/test/java/com/sino/mci/channel/controller/ChannelAccountEventControllerTest.java
@@ -0,0 +1,87 @@
+package com.sino.mci.channel.controller;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.sino.mci.channel.dto.ChannelAccountEventRequest;
+import com.sino.mci.channel.entity.ChannelAccount;
+import com.sino.mci.channel.repository.ChannelAccountMapper;
+import com.sino.mci.channel.repository.ChannelEventRecordMapper;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.webmvc.test.autoconfigure.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.MediaType;
+import org.springframework.test.context.jdbc.Sql;
+import org.springframework.test.web.servlet.MockMvc;
+
+import java.util.Map;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.post;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+@SpringBootTest
+@AutoConfigureMockMvc
+@Sql(scripts = "/sql/test-channel-account.sql", executionPhase = Sql.ExecutionPhase.BEFORE_TEST_METHOD)
+class ChannelAccountEventControllerTest {
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    private final ObjectMapper objectMapper = new ObjectMapper();
+
+    @Autowired
+    private ChannelAccountMapper accountMapper;
+
+    @Autowired
+    private ChannelEventRecordMapper eventRecordMapper;
+
+    @Test
+    void shouldUpdateAccountOnHeartbeat() throws Exception {
+        ChannelAccountEventRequest request = new ChannelAccountEventRequest();
+        request.setEventId("evt-001");
+        request.setEventType("heartbeat");
+        request.setAccountId("wx-bot-01");
+        request.setTenantCode("rescue");
+        request.setData(Map.of(
+                "login_status", "success",
+                "online_status", "online",
+                "risk_level", 10));
+
+        mockMvc.perform(post("/msg-platform/api/v1/channel-account/event")
+                        .contextPath("/msg-platform")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(objectMapper.writeValueAsString(request)))
+                .andExpect(status().isOk())
+                .andExpect(jsonPath("$.code").value(0));
+
+        ChannelAccount account = accountMapper.selectById(1L);
+        assertThat(account.getOnlineStatus()).isEqualTo(1);
+        assertThat(account.getRiskLevel()).isEqualTo(10);
+        assertThat(eventRecordMapper.selectById("evt-001")).isNotNull();
+    }
+
+    @Test
+    void shouldIgnoreDuplicateEvent() throws Exception {
+        ChannelAccountEventRequest request = new ChannelAccountEventRequest();
+        request.setEventId("evt-dup-001");
+        request.setEventType("heartbeat");
+        request.setAccountId("wx-bot-01");
+        request.setTenantCode("rescue");
+        request.setData(Map.of("online_status", "online"));
+
+        mockMvc.perform(post("/msg-platform/api/v1/channel-account/event")
+                        .contextPath("/msg-platform")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(objectMapper.writeValueAsString(request)))
+                .andExpect(status().isOk());
+
+        mockMvc.perform(post("/msg-platform/api/v1/channel-account/event")
+                        .contextPath("/msg-platform")
+                        .contentType(MediaType.APPLICATION_JSON)
+                        .content(objectMapper.writeValueAsString(request)))
+                .andExpect(status().isOk());
+
+        assertThat(eventRecordMapper.selectCount(null)).isEqualTo(1);
+    }
+}
diff --git a/backend/mci-server/src/test/resources/sql/test-channel-account.sql b/backend/mci-server/src/test/resources/sql/test-channel-account.sql
new file mode 100644
index 0000000..27700a1
--- /dev/null
+++ b/backend/mci-server/src/test/resources/sql/test-channel-account.sql
@@ -0,0 +1,13 @@
+SET FOREIGN_KEY_CHECKS = 0;
+
+DELETE FROM mci_channel_event_record;
+DELETE FROM mci_channel_account;
+DELETE FROM mci_tenant;
+
+SET FOREIGN_KEY_CHECKS = 1;
+
+INSERT INTO mci_tenant (id, tenant_code, tenant_name, status, create_time)
+VALUES (1, 'rescue', '救援', 1, NOW());
+
+INSERT INTO mci_channel_account (id, tenant_code, account_type, channel_type, account_id, account_name, login_status, online_status, risk_level, status, create_time)
+VALUES (1, 'rescue', 3, 'wechat_personal', 'wx-bot-01', '测试号', 0, 0, 0, 1, NOW());