diff --git a/server/gameserver/boxdrop.cc b/server/gameserver/boxdrop.cc
index c42c4499..1f210a60 100644
--- a/server/gameserver/boxdrop.cc
+++ b/server/gameserver/boxdrop.cc
@@ -5,6 +5,8 @@
 #include "hero.h"
 #include "obstacle.h"
 
+#include "mt/MapMode.h"
+
 const int BOX_ID = 150001;
 
 BoxDrop::BoxDrop(Room* room):room_(room)
@@ -14,7 +16,18 @@ BoxDrop::BoxDrop(Room* room):room_(room)
 
 void BoxDrop::Init()
 {
-
+    if (room_->GetMapModeMeta() && room_->GetMapModeMeta()->mapMode() == mt::kTreasureBoxMode) {
+        get_box_num_timer_ = room_->xtimer.SetTimeoutWpEx
+            (SERVER_FRAME_RATE * 10,
+             [this] (int event, const a8::Args* args)
+             {
+                 if (a8::TIMER_EXEC_EVENT == event) {
+                     if (!room_->IsGameOver() && !room_->GetVictoryTeam()) {
+                     }
+                 }
+             },
+             &room_->xtimer_attacher_);
+    }
 }
 
 void BoxDrop::UnInit()
@@ -24,12 +37,16 @@ void BoxDrop::UnInit()
 
 void BoxDrop::OnHeroDeadDrop(Hero* hero)
 {
-    Drop(1, hero->GetPos().ToGlmVec3());
+    if (box_num_ > 0) {
+        Drop(1, hero->GetPos().ToGlmVec3());
+    }
 }
 
 void BoxDrop::OnObstacleDeadDrop(Obstacle* ob)
 {
-    Drop(1, ob->GetPos().ToGlmVec3());
+    if (box_num_  > 0) {
+        Drop(1, ob->GetPos().ToGlmVec3());
+    }
 }
 
 void BoxDrop::Drop(int num, const glm::vec3& center)
@@ -39,3 +56,8 @@ void BoxDrop::Drop(int num, const glm::vec3& center)
         room_->CreateObstacle(BOX_ID, center.x, center.y, center.z);
     }
 }
+
+void BoxDrop::OnBattleStart()
+{
+
+}
diff --git a/server/gameserver/boxdrop.h b/server/gameserver/boxdrop.h
index b0d4b105..6a3b90e3 100644
--- a/server/gameserver/boxdrop.h
+++ b/server/gameserver/boxdrop.h
@@ -11,6 +11,7 @@ class BoxDrop : public std::enable_shared_from_this<BoxDrop>
     BoxDrop(Room* room);
     void Init();
     void UnInit();
+    void OnBattleStart();
     void OnHeroDeadDrop(Hero* hero);
     void OnObstacleDeadDrop(Obstacle* ob);
 
@@ -20,4 +21,6 @@ class BoxDrop : public std::enable_shared_from_this<BoxDrop>
 
  private:
     Room* room_ = nullptr;
+    a8::XTimerWp get_box_num_timer_;
+    int box_num_ = 0;
 };
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index d8498a37..4a06f5db 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -3216,6 +3216,7 @@ void Room::OnBattleStart()
     }
     battle_starting_ = false;
     SendSMTeamFull(nullptr);
+    GetBoxDrop()->OnBattleStart();
 }
 
 bool Room::CanAddObstacle(const glm::vec3& pos, int obstacle_id)