diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 9860e40..d30f74c 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -2000,17 +2000,7 @@ void Human::WinExp(Human* sender, int exp)
         room->frame_event.AddZombieIdChg(this);
         OnMetaChange();
         if (GetRace() == kZombieRace && meta->i->level() == 3) {
-            room->TouchPlayerList
-                (
-                 a8::XParams()
-                 .SetParam1(meta->i->name()),
-                 [] (Player* hum, a8::XParams& param)
-                 {
-                     hum->SendSysPiaoMsg(a8::Format("%s出现了", {param.param1.GetString()}),
-                                         a8::MkRgb(255, 0, 0),
-                                         3);
-                 }
-                 );
+            room->OnZombieAppear(this);
         }
     }
 }
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 763fb48..4f1ede5 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -1455,6 +1455,24 @@ void Room::AirDrop(int appear_time, int box_id, int airdrop_id)
     }
 }
 
+void Room::OnZombieAppear(Human* hum)
+{
+    if (hum->GetRace() == kZombieRace && hum->meta->i->level() == 3 && !sent_zombie_boss_notify) {
+        sent_zombie_boss_notify = true;
+        TouchPlayerList
+            (
+             a8::XParams()
+             .SetParam1(hum->meta->i->name()),
+             [] (Player* hum, a8::XParams& param)
+             {
+                 hum->SendSysPiaoMsg(a8::Format("%s出现了", {param.param1.GetString()}),
+                                     a8::MkRgb(255, 0, 0),
+                                     3);
+             }
+             );
+    }
+}
+
 void Room::AdjustAirDropPos(MetaData::MapThing* thing_meta, a8::Vec2& box_pos)
 {
     if (room_type_ == RT_NewBrid) {
diff --git a/server/gameserver/room.h b/server/gameserver/room.h
index 4f6b461..ef5400a 100644
--- a/server/gameserver/room.h
+++ b/server/gameserver/room.h
@@ -137,6 +137,7 @@ public:
     void RemoveRescue(Human* hum);
     void NotifyCountdown(const std::string& msg, int time);
     void NotifySysPiao(const std::string& msg, int color, int duration);
+    void OnZombieAppear(Human* hum);
 
 private:
     int AllocUniid();
@@ -237,6 +238,7 @@ private:
     const std::vector<Building*>* buildings_ = nullptr;
     const std::vector<MetaData::MapTplThing*>* level0room_spec_things_ = nullptr;
     Human* first_newbie_ = nullptr;
+    bool sent_zombie_boss_notify = false;
 
     bool waiting_start_ = false;
     GasData gas_data_;