diff --git a/server/gameserver/creature.cc b/server/gameserver/creature.cc
index 93eb96a1..75f7a4f6 100644
--- a/server/gameserver/creature.cc
+++ b/server/gameserver/creature.cc
@@ -3,6 +3,7 @@
 #include "creature.h"
 #include "metamgr.h"
 #include "room.h"
+#include "skill.h"
 
 bool Creature::HasBuffEffect(int buff_effect_id)
 {
@@ -314,3 +315,18 @@ void Creature::TriggerOneObjectBuff(Entity* target, BuffTriggerType_e trigger_ty
 {
 
 }
+
+Skill* Creature::GetSkill(int skill_id)
+{
+    auto itr = skill_hash_.find(skill_id);
+    return itr != skill_hash_.end() ? itr->second : nullptr;
+}
+
+bool Creature::CanUseSkill(int skill_id)
+{
+    Skill* skill = GetSkill(skill_id);
+    if (!skill) {
+        return false;
+    }
+    return skill->GetLeftTime() <= 0;
+}
diff --git a/server/gameserver/creature.h b/server/gameserver/creature.h
index ac32d104..b7e69260 100644
--- a/server/gameserver/creature.h
+++ b/server/gameserver/creature.h
@@ -11,6 +11,7 @@ namespace MetaData
 }
 
 struct xtimer_list;
+class Skill;
 class Creature : public MoveableEntity
 {
  public:
@@ -35,6 +36,7 @@ class Creature : public MoveableEntity
     float GetBuffAttrRate(int attr_id);
     void FillBuffList(::google::protobuf::RepeatedPtrField<::cs::MFBuff>* pb_buff_list);
     void TriggerBuff(std::set<Entity*>& target_list, BuffTriggerType_e trigger_type);
+    Skill* GetSkill(int skill_id);
 
     void AddPassiveSkill(MetaData::Skill* skill_meta);
     void RemovePassiveSkill(MetaData::Skill* skill_meta);
@@ -44,6 +46,7 @@ class Creature : public MoveableEntity
     void AddPassiveSkillBuff(MetaData::Skill* skill_meta);
 
     virtual void SelectSkillTargets(const a8::Vec2& target_pos, std::set<Entity*>& target_list);
+    virtual bool CanUseSkill(int skill_id);
 
 protected:
     size_t curr_skill_phase = 0;
@@ -56,6 +59,7 @@ protected:
     long long last_use_skill_frameno_ = 0;
     a8::XTimerAttacher skill_xtimer_attacher_;
     MetaData::Skill* skill_meta_ = nullptr;
+    std::map<int, Skill*> skill_hash_;
 
 private:
 
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 4490c106..ee0ecbce 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -1314,16 +1314,7 @@ bool Human::HasNoDownedTeammate()
 
 bool Human::CanUseSkill(int skill_id)
 {
-    if (downed) {
-        return false;
-    }
-    if (!skill_meta_) {
-        return false;
-    }
-    if (GetSkillLeftTime() > 0) {
-        return false;
-    }
-    return true;
+    return !downed && Creature::CanUseSkill(skill_id);
 }
 
 void Human::DoJump()
diff --git a/server/gameserver/human.h b/server/gameserver/human.h
index 3cf7d364..8bf9f17a 100644
--- a/server/gameserver/human.h
+++ b/server/gameserver/human.h
@@ -193,7 +193,7 @@ class Human : public Creature
     void RemoveOutObjects(Entity* entity);
     bool HasLiveTeammate();
     bool HasNoDownedTeammate();
-    bool CanUseSkill(int skill_id);
+    virtual bool CanUseSkill(int skill_id) override;
     void DoJump();
     void DoSkill(int skill_id, int target_id, const a8::Vec2& target_pos);
     virtual int SelectSkillId();
diff --git a/server/gameserver/skill.cc b/server/gameserver/skill.cc
new file mode 100644
index 00000000..223e5e2a
--- /dev/null
+++ b/server/gameserver/skill.cc
@@ -0,0 +1,8 @@
+#include "precompile.h"
+
+#include "skill.h"
+
+int Skill::GetLeftTime()
+{
+    return 0;
+}
diff --git a/server/gameserver/skill.h b/server/gameserver/skill.h
new file mode 100644
index 00000000..643f046a
--- /dev/null
+++ b/server/gameserver/skill.h
@@ -0,0 +1,17 @@
+#pragma once
+
+namespace MetaData
+{
+    struct Skill;
+}
+
+class Creature;
+class Skill
+{
+ public:
+    Creature* owner = nullptr;
+    MetaData::Skill* meta = nullptr;
+    long long add_frameno = 0;
+
+    int GetLeftTime();
+};