diff --git a/server/gameserver/incubator.cc b/server/gameserver/incubator.cc
index c092083c..6bc54097 100644
--- a/server/gameserver/incubator.cc
+++ b/server/gameserver/incubator.cc
@@ -255,6 +255,11 @@ void Incubator::SpawnWaveMon(int wave)
     if (room->IsGameOver()) {
         return;
     }
+    if (room->pve_data.refreshed_mon > 0 &&
+        room->pve_data.mon_num <= 0) {
+        timeout_ = true;
+        return;
+    }
     auto& mons = room->pve_mode_meta->waves[wave];
     for (MetaData::PveGeminiContent* content : mons) {
         room->xtimer.AddDeadLineTimerAndAttach
diff --git a/server/gameserver/incubator.h b/server/gameserver/incubator.h
index 5fdcb32e..621ab255 100644
--- a/server/gameserver/incubator.h
+++ b/server/gameserver/incubator.h
@@ -14,6 +14,7 @@ class Incubator
     void AllocAndroid(Human* target, int num);
     void RecycleAndroid(Human* hum);
     void ActiveAndroid(Human* hum, Human* android);
+    bool IsTimeOut() { return timeout_; };
 
 private:
     bool CanSee(Human* hum, Human* exclude_hum);
@@ -21,6 +22,7 @@ private:
     void SpawnWaveMon(int wave);
 
 private:
+    bool timeout_ = false;
     std::vector<Human*> hold_humans_;
     a8::XTimerAttacher xtimer_attacher_;
 };