diff --git a/spec/ai-robot/tasks.md b/spec/ai-robot/tasks.md
index 5133528..ee7eac0 100644
--- a/spec/ai-robot/tasks.md
+++ b/spec/ai-robot/tasks.md
@@ -166,15 +166,15 @@ last_updated: "2026-02-24"
   - [x] 幂等性检查
 
 ### TASK-022: 重构 MessageProcessService
-- **状态**: ⏳ 待开始
+- **状态**: ✅ 已完成
 - **优先级**: P0
 - **关联 AC**: AC-MCA-08
 - **描述**: 将现有 MessageProcessService 逻辑迁移到 MessageRouterServiceImpl
 - **产出物**:
   - `src/main/java/com/wecom/robot/service/MessageProcessService.java` 更新或删除
 - **验收标准**:
-  - [ ] 现有功能保持兼容
-  - [ ] 微信专属逻辑移至 WeChatAdapter
+  - [x] 现有功能保持兼容
+  - [x] 微信专属逻辑移至 WeChatAdapter
 
 ### TASK-023: 更新 SessionManagerService
 - **状态**: ⏳ 待开始
diff --git a/src/main/java/com/wecom/robot/entity/Session.java b/src/main/java/com/wecom/robot/entity/Session.java
index ef8fcd4..5b56999 100644
--- a/src/main/java/com/wecom/robot/entity/Session.java
+++ b/src/main/java/com/wecom/robot/entity/Session.java
@@ -22,6 +22,8 @@ public class Session implements Serializable {
 
     private String kfId;
 
+    private String channelType;
+
     private String status;
 
     private Integer wxServiceState;
@@ -39,4 +41,8 @@ public class Session implements Serializable {
     public static final String STATUS_PENDING = "PENDING";
     public static final String STATUS_MANUAL = "MANUAL";
     public static final String STATUS_CLOSED = "CLOSED";
+
+    public static final String CHANNEL_WECHAT = "wechat";
+    public static final String CHANNEL_DOUYIN = "douyin";
+    public static final String CHANNEL_JD = "jd";
 }
diff --git a/src/main/java/com/wecom/robot/service/SessionManagerService.java b/src/main/java/com/wecom/robot/service/SessionManagerService.java
index 5364de4..85a5360 100644
--- a/src/main/java/com/wecom/robot/service/SessionManagerService.java
+++ b/src/main/java/com/wecom/robot/service/SessionManagerService.java
@@ -17,6 +17,11 @@ import java.time.LocalDateTime;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 
+/**
+ * 会话管理服务
+ * 
+ * <p>关联 AC: [AC-MCA-11] 会话管理, [AC-MCA-12] 渠道类型支持
+ */
 @Slf4j
 @Service
 @RequiredArgsConstructor
@@ -31,6 +36,10 @@ public class SessionManagerService {
     private final StringRedisTemplate redisTemplate;
 
     public Session getOrCreateSession(String customerId, String kfId) {
+        return getOrCreateSession(customerId, kfId, Session.CHANNEL_WECHAT);
+    }
+
+    public Session getOrCreateSession(String customerId, String kfId, String channelType) {
         LambdaQueryWrapper<Session> query = new LambdaQueryWrapper<>();
         query.eq(Session::getCustomerId, customerId)
              .eq(Session::getKfId, kfId)
@@ -44,6 +53,7 @@ public class SessionManagerService {
             session.setSessionId(generateSessionId(customerId, kfId));
             session.setCustomerId(customerId);
             session.setKfId(kfId);
+            session.setChannelType(channelType != null ? channelType : Session.CHANNEL_WECHAT);
             session.setStatus(Session.STATUS_AI);
             session.setWxServiceState(0);
             session.setCreatedAt(LocalDateTime.now());
@@ -51,6 +61,8 @@ public class SessionManagerService {
             sessionMapper.insert(session);
 
             cacheSessionStatus(session.getSessionId(), Session.STATUS_AI);
+            log.info("[AC-MCA-11] 创建新会话: sessionId={}, channelType={}", 
+                    session.getSessionId(), session.getChannelType());
         }
 
         return session;
@@ -199,6 +211,17 @@ public class SessionManagerService {
         return sessionMapper.selectList(query);
     }
 
+    public List<Session> getSessionsByChannelType(String channelType, String status, int limit) {
+        LambdaQueryWrapper<Session> query = new LambdaQueryWrapper<>();
+        query.eq(Session::getChannelType, channelType);
+        if (status != null && !status.isEmpty() && !"all".equals(status)) {
+            query.eq(Session::getStatus, status);
+        }
+        query.orderByDesc(Session::getUpdatedAt);
+        query.last("LIMIT " + limit);
+        return sessionMapper.selectList(query);
+    }
+
     public List<Session> getAllSessions(int limit) {
         LambdaQueryWrapper<Session> query = new LambdaQueryWrapper<>();
         query.orderByDesc(Session::getUpdatedAt);
diff --git a/src/main/java/com/wecom/robot/service/impl/MessageRouterServiceImpl.java b/src/main/java/com/wecom/robot/service/impl/MessageRouterServiceImpl.java
index 46df6ce..c444dad 100644
--- a/src/main/java/com/wecom/robot/service/impl/MessageRouterServiceImpl.java
+++ b/src/main/java/com/wecom/robot/service/impl/MessageRouterServiceImpl.java
@@ -160,7 +160,8 @@ public class MessageRouterServiceImpl implements MessageRouterService {
     private Session getOrCreateSession(InboundMessage message) {
         return sessionManagerService.getOrCreateSession(
                 message.getCustomerId(),
-                message.getKfId()
+                message.getKfId(),
+                message.getChannelType()
         );
     }