diff --git a/server/gameserver/bullet.cc b/server/gameserver/bullet.cc
index 2723e50..b9c2121 100644
--- a/server/gameserver/bullet.cc
+++ b/server/gameserver/bullet.cc
@@ -207,6 +207,7 @@ void Bullet::ProcSmokeBomb()
         task->room = room;
         task->bomb_pos = GetPos();
         task->buff_meta = buff_meta;
+        task->gun_meta = gun_meta;
         room->xtimer.AddRepeatTimerAndAttach
             (SERVER_FRAME_RATE / 2,
              a8::XParams()
@@ -229,6 +230,7 @@ void Bullet::ProcSmokeBomb()
              [] (const a8::XParams& param)
              {
                  SmokeMiTask* task = (SmokeMiTask*)param.sender.GetUserData();
+                 task->Done();
                  delete task;
              }
              );
@@ -237,6 +239,9 @@ void Bullet::ProcSmokeBomb()
 
 bool Bullet::IsBomb()
 {
+    #if 0
+    ((metatable::Equip*)meta->i)->set__inventory_slot(6);
+    #endif
     return
         meta->i->_inventory_slot() == 4 ||
         meta->i->_inventory_slot() == 5 ||
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 0604b0a..4bd33f8 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -3032,6 +3032,13 @@ void Human::AddBuff(Human* caster,
                                                );
     }
     ProcBuffEffect(caster, buff);
+    #ifdef DEBUG
+    SendDebugMsg(a8::Format("添加buff_id:%d buff_effect:%d",
+                            {
+                                buff_meta->i->buff_id(),
+                                buff_meta->i->buff_effect()
+                            }));
+    #endif
 }
 
 bool Human::IsImmuneBuffEffect(int buff_effect)
@@ -3057,6 +3064,12 @@ void Human::RemoveBuffById(int buff_id)
         }
     }
     RecalcBuffAttr();
+    #ifdef DEBUG
+    SendDebugMsg(a8::Format("移除buff_id:%d",
+                            {
+                                buff_id
+                            }));
+    #endif
 }
 
 void Human::RemoveBuffByEffectId(int buff_effect_id)
diff --git a/server/gameserver/smoke_mitask.cc b/server/gameserver/smoke_mitask.cc
index d14a5b1..0d60f4b 100644
--- a/server/gameserver/smoke_mitask.cc
+++ b/server/gameserver/smoke_mitask.cc
@@ -3,13 +3,14 @@
 #include "smoke_mitask.h"
 #include "room.h"
 #include "player.h"
+#include "metadata.h"
 
 void SmokeMiTask::Check()
 {
     {
         std::list<Player*> deleted_hums;
         for (auto& hum : player_set) {
-            if (bomb_pos.Distance(hum->GetPos()) > 0.0001) {
+            if (bomb_pos.Distance(hum->GetPos()) > gun_meta->i->bullet_rad() + hum->meta->i->radius()) {
                 hum->RemoveBuffByEffectId(kBET_HunLuan);
                 deleted_hums.push_back(hum);
             }
@@ -22,11 +23,19 @@ void SmokeMiTask::Check()
         (a8::XParams(),
          [this] (Player* hum, a8::XParams&) -> bool
          {
-             if (bomb_pos.Distance(hum->GetPos()) < 0.0001) {
+             if (bomb_pos.Distance(hum->GetPos()) < gun_meta->i->bullet_rad() + hum->meta->i->radius()) {
                  if (!hum->HasBuffEffect(kBET_HunLuan)) {
                      hum->AddBuff(nullptr, buff_meta, 1, nullptr);
+                     player_set.insert(hum);
                  }
              }
              return true;
          });
 }
+
+void SmokeMiTask::Done()
+{
+    for (auto& hum : player_set) {
+        hum->RemoveBuffByEffectId(kBET_HunLuan);
+    }
+}
diff --git a/server/gameserver/smoke_mitask.h b/server/gameserver/smoke_mitask.h
index c36dd0b..5c611f2 100644
--- a/server/gameserver/smoke_mitask.h
+++ b/server/gameserver/smoke_mitask.h
@@ -6,6 +6,7 @@ const int HUNLUAN_BUFFID = 6001;
 namespace MetaData
 {
     struct Buff;
+    struct Equip;
 }
 
 class Room;
@@ -17,6 +18,8 @@ class SmokeMiTask : public MicroTask
     a8::Vec2 bomb_pos;
     std::set<Player*> player_set;
     MetaData::Buff* buff_meta = nullptr;
+    MetaData::Equip* gun_meta = nullptr;
 
     void Check();
+    void Done();
 };