diff --git a/server/gameserver/framemaker.cc b/server/gameserver/framemaker.cc
index 6c4abe5..cbd4025 100644
--- a/server/gameserver/framemaker.cc
+++ b/server/gameserver/framemaker.cc
@@ -186,7 +186,10 @@ cs::SMUpdate* FrameMaker::MakeUpdateMsg(const Human* hum)
             msg->set_gas_progress(room->GetGasData().gas_progress);
             TypeConvert::ToPb(room->GetGasData().pos_old, msg->mutable_gas_pos_old());
         }
-        msg->set_alive_count(room->AliveCount());
+        if (room->GetFrameNo() - room->AliveCountChgFrameNo() <= 4 ||
+            room->GetFrameNo() - hum->join_frameno <= 2) {
+            msg->set_alive_count(room->AliveCount());
+        }
     }
     return msg;
 }
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index cae64bb..0a04b19 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -190,6 +190,7 @@ void Room::AddPlayer(Player* hum)
     MatchTeam(hum);
     hum->PushJoinRoomMsg();
     ++alive_count_;
+    alive_count_chged_frameno_ = GetFrameNo();
     ++PerfMonitor::Instance()->alive_count;
 
     grid_service->AddHuman(hum);
@@ -287,6 +288,7 @@ void Room::CreateAndroid(int robot_num)
         AddToHumanHash(hum);
         MatchTeam(hum);
         ++alive_count_;
+        alive_count_chged_frameno_ = GetFrameNo();
         ++PerfMonitor::Instance()->alive_count;
         refreshed_robot_set_.insert(robot_meta->i->id());
 
@@ -539,6 +541,7 @@ void Room::RemoveObjectLater(RoomEntity* entity)
 void Room::OnHumanDie(Human* hum)
 {
     --alive_count_;
+    alive_count_chged_frameno_ = GetFrameNo();
     --PerfMonitor::Instance()->alive_count;
     RemoveFromAliveHumanHash(hum);
     NotifyUiUpdate();
@@ -1390,6 +1393,7 @@ void Room::RandRemoveAndroid()
         RemoveFromAliveHumanHash(hum);
         AddToRemovedRobotHash(hum);
         --alive_count_;
+        alive_count_chged_frameno_ = GetFrameNo();
         --PerfMonitor::Instance()->alive_count;
         for (auto& pair : human_hash_) {
             pair.second->RemovePartObjects(hum);
diff --git a/server/gameserver/room.h b/server/gameserver/room.h
index 1c2faae..5702969 100644
--- a/server/gameserver/room.h
+++ b/server/gameserver/room.h
@@ -62,6 +62,7 @@ public:
 
     int GetPlayerNum();
     int AliveCount();
+    long long AliveCountChgFrameNo() { return alive_count_chged_frameno_; };
     inline int RealAliveCount() { return alive_human_hash_.size(); }
     Player* GetPlayerByAccountId(const std::string& accountid);
     Player* GetPlayerByUniId(int uniid);
@@ -223,6 +224,7 @@ private:
     long long game_over_frameno_ = 0;
     int elapsed_time_ = 0;
     int alive_count_ = 0;
+    long long alive_count_chged_frameno_ = 0;
     MetaData::AirLine* airline_ = nullptr;
     a8::XTimerAttacher xtimer_attacher_;
     size_t airdrop_times_ = 0;