diff --git a/server/gameserver/constant.h b/server/gameserver/constant.h
index b745cdb..3d731be 100755
--- a/server/gameserver/constant.h
+++ b/server/gameserver/constant.h
@@ -65,6 +65,24 @@ enum ActionType_e
     AT_Relive = 3,
 };
 
+enum InventorySlot_e
+{
+    IS_9MM  = 0,
+    IS_556MM  = 1,
+    IS_762MM  = 2,
+    IS_12GAUGE  = 3,
+    IS_RPG  = 4,
+    IS_FRAG  = 5,
+    IS_SMOKE  = 6,
+    IS_HEALTHKIT  = 7,
+
+    IS_1XSCOPE  = 12,
+    IS_2XSCOPE  = 13,
+    IS_4XSCOPE  = 14,
+    IS_8XSCOPE  = 15,
+    IS_15XSCOPE  = 16,
+};
+
 const char* const PROJ_NAME_FMT = "game%d_gameserver";
 const char* const PROJ_ROOT_FMT = "/data/logs/%s";
 
diff --git a/server/gameserver/metamgr.cc b/server/gameserver/metamgr.cc
index 836fecb..0f9f9b1 100755
--- a/server/gameserver/metamgr.cc
+++ b/server/gameserver/metamgr.cc
@@ -34,6 +34,7 @@ public:
     std::map<int, MetaData::SafeArea*> safearea_hash;
     std::map<int, MetaData::Item*> item_hash;
     std::map<int, MetaData::Equip*> equip_hash;
+    std::map<int, MetaData::Equip*> equip_slot_hash;
     std::map<int, MetaData::Player*> player_hash;
     std::map<int, MetaData::MapThing*> mapthing_hash;
     std::map<int, MetaData::Building*> building_hash;
@@ -99,6 +100,9 @@ private:
             MetaData::Equip& item = a8::FastAppend(equip_list);
             item.i = &meta;
             equip_hash[item.i->id()] = &item;
+            if (meta._inventory_slot() > -1) {
+                equip_slot_hash[meta._inventory_slot()] = &item;
+            }
         }
 
         for (auto& meta : player_meta_list) {
@@ -186,6 +190,12 @@ MetaData::Equip* MetaMgr::GetEquip(int id)
     return itr != loader_->equip_hash.end() ? itr->second : nullptr;
 }
 
+MetaData::Equip* MetaMgr::GetEquipBySlotId(int slot_id)
+{
+    auto itr = loader_->equip_slot_hash.find(slot_id);
+    return itr != loader_->equip_slot_hash.end() ? itr->second : nullptr;
+}
+
 MetaData::Building* MetaMgr::GetBuilding(int building_id)
 {
     auto itr = loader_->building_hash.find(building_id);
diff --git a/server/gameserver/metamgr.h b/server/gameserver/metamgr.h
index 508b6ae..665c1ad 100755
--- a/server/gameserver/metamgr.h
+++ b/server/gameserver/metamgr.h
@@ -21,6 +21,7 @@ class MetaMgr : public a8::Singleton<MetaMgr>
     MetaData::MapThing* GetMapThing(int mapthing_id);
     MetaData::Player* GetPlayer(int id);
     MetaData::Equip* GetEquip(int id);
+    MetaData::Equip* GetEquipBySlotId(int slot_id);
     MetaData::Building* GetBuilding(int building_id);
     MetaData::Drop* GetDrop(int drop_id);
     MetaData::SafeArea* GetSafeArea(int area_id);
diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index 6191dc3..0e33a63 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -63,6 +63,12 @@ void Player::Update(int delta_time)
         if (reload) {
             UpdateReload();
         }
+        if (cancel_action) {
+            UpdateCancelAction();
+        }
+        if (use_item) {
+            UpdateUseItemIdx();
+        }
         if (action_type != AT_None) {
             UpdateAction();
         }
@@ -174,6 +180,29 @@ void Player::UpdateAction()
                 }
             }
             break;
+        case AT_UseItem:
+            {
+                switch (action_item_id) {
+                case IS_HEALTHKIT:
+                    {
+                        MetaData::Equip* item_meta = MetaMgr::Instance()->GetEquipBySlotId(action_item_id);
+                        if (item_meta){
+                            if (inventory[item_meta->i->_inventory_slot()] > 0) {
+                                health += item_meta->i->heal();
+                                health = std::max(100.0f, health);
+                                ++inventory[item_meta->i->_inventory_slot()];
+                                need_sync_active_player = true;
+                            }
+                        }
+                    }
+                    break;
+                default:
+                    {
+                    }
+                    break;
+                }
+            }
+            break;
         }
         ResetAction();
     }
@@ -185,6 +214,40 @@ void Player::UpdateReload()
     reload = false;
 }
 
+void Player::UpdateCancelAction()
+{
+    CancelAction();
+    cancel_action = false;
+}
+
+void Player::UpdateUseItemIdx()
+{
+    if (use_item_idx >= 0 && use_item_idx < MAX_INVENTORY_NUM) {
+        switch (use_item_idx) {
+        case IS_HEALTHKIT:
+            {
+                MetaData::Equip* item_meta = MetaMgr::Instance()->GetEquipBySlotId(use_item_idx);
+                if (item_meta) {
+                    StartAction(
+                                AT_UseItem,
+                                item_meta->i->use_time(),
+                                use_item_idx,
+                                0
+                                );
+                }
+            }
+            break;
+        default:
+            {
+
+            }
+            break;
+        }
+    }
+    use_item_idx = 0;
+    use_item = false;
+}
+
 void Player::Shot()
 {
     if (!curr_weapon->meta) {
@@ -519,6 +582,13 @@ void Player::_CMMove(f8::MsgHdr& hdr, const cs::CMMove& msg)
     if (msg.has_reload()) {
         reload = msg.reload();
     }
+    if (msg.has_cancel_action()) {
+        cancel_action = msg.cancel_action();
+    }
+    if (msg.has_use_item_idx()) {
+        use_item = true;
+        use_item_idx = msg.use_item_idx();
+    }
 }
 
 void Player::UpdateDropWeapon()
diff --git a/server/gameserver/player.h b/server/gameserver/player.h
index 0d0e87f..617ccab 100644
--- a/server/gameserver/player.h
+++ b/server/gameserver/player.h
@@ -46,6 +46,11 @@ class Player : public Human
     bool drop_weapon = false;
     int drop_weapon_idx = 0;
 
+    bool cancel_action = false;
+
+    bool use_item = false;
+    int use_item_idx = 0;
+
     bool use_scope = false;
     int use_scope_idx = 0;
 
@@ -70,6 +75,8 @@ class Player : public Human
     void UpdateUseScope();
     void UpdateAction();
     void UpdateReload();
+    void UpdateCancelAction();
+    void UpdateUseItemIdx();
     void Shot();
     void ProcInteraction();
     void ObstacleInteraction(Obstacle* entity);
diff --git a/server/tools/protobuild/cs_proto.proto b/server/tools/protobuild/cs_proto.proto
index cd0c299..231378d 100755
--- a/server/tools/protobuild/cs_proto.proto
+++ b/server/tools/protobuild/cs_proto.proto
@@ -536,7 +536,8 @@ message CMMove
     optional int32 select_weapon = 10; //切换武器(没切换是不用发)
     optional int32 drop_weapon = 11; //丢弃武器
 
-    //use_item使用道具
+    optional bool cancel_action = 26; //取消当前操作(比如取消使用道具装弹等)
+    optional int32 use_item_idx = 22; //使用道具（对应库存索引0-16）
     optional int32 use_scope = 25; //使用倍镜 0-4
 
     optional bool interaction = 9; //是否有交互