diff --git a/server/robotserver/android_agent.cc b/server/robotserver/android_agent.cc
index a09f2ba4..baea43a2 100644
--- a/server/robotserver/android_agent.cc
+++ b/server/robotserver/android_agent.cc
@@ -168,6 +168,19 @@ behaviac::EBTStatus AndroidAgent::CoConnectBattleServer()
 behaviac::EBTStatus AndroidAgent::CoJoin()
 {
     cs::CMJoin msg;
+    msg.set_server_id(1);
+    msg.set_team_uuid("");
+    msg.set_account_id(owner_->GetAccountId());
+    msg.set_team_mode(2);
+    msg.set_proto_version(cs::ProtoVersion);
+    msg.set_auto_fill(1);
+    msg.set_name("");
+    msg.set_avatar_url("");
+    //weapons
+    msg.set_session_id(owner_->GetSessionId());
+    owner_->SendMsg(msg);
+
+    a8::XPrintf("CoJoin\n", {});
     return behaviac::BT_SUCCESS;
 }
 
diff --git a/server/robotserver/player.h b/server/robotserver/player.h
index 6dd691a1..b37673af 100644
--- a/server/robotserver/player.h
+++ b/server/robotserver/player.h
@@ -30,6 +30,7 @@ public:
     int GetSocketId() { return socket_handle_; }
     bool NetConnected() { return net_connected_; }
     const std::string& GetAccountId() { return account_id_; }
+    const std::string& GetSessionId() { return session_id_; }
     auto GetWebSocket() { return web_socket_; }
     int GetIdx() { return idx_; }
     void SetLoginSucess();