diff --git a/protocol/userCenter.proto b/protocol/userCenter.proto
index d827270d8c6193829bfff50b036d7007417cf15c..c20e730d6f4ec753647f60d7910c1205205b7e76 100644
--- a/protocol/userCenter.proto
+++ b/protocol/userCenter.proto
@@ -122,6 +122,16 @@ message GetLastRoomHeartbeatMessageResp {
   int64 timestamp = 1;
 }
 
+message AreaMessage {
+  int32 area = 1;
+  uint32 msgType = 2;
+  bytes payLoad = 3;
+}
+
+message AreaMessageRsp {
+  repeated uint64 failedUids = 1;
+}
+
 service Router {
   rpc route(RouteMessage) returns (RouteMessageRsp) {}
   rpc kickUser(KickMessage) returns (KickMessageRsp) {}
@@ -132,6 +142,7 @@ service User {
   rpc logout(LogoutMessage) returns (LogoutMessageRsp) {}
   rpc multicast(MulticastMessage) returns (MulticastMessageRsp) {}
   rpc broadcast(BroadcastMessage) returns (BroadcastMessageRsp) {}
+  rpc areacast(AreaMessage) returns (AreaMessageRsp) {}
   rpc transmit(BizMessage) returns (BizMessageRsp) {}
   rpc enterRoom(EnterRoomMessage) returns (EnterRoomMessageRsp) {}
   rpc leaveRoom(LeaveRoomMessage) returns (LeaveRoomMessageRsp) {}