diff --git a/lua/app/userdata/battle/battle_data.lua b/lua/app/userdata/battle/battle_data.lua
index 16c3e7e3..ed50a53a 100644
--- a/lua/app/userdata/battle/battle_data.lua
+++ b/lua/app/userdata/battle/battle_data.lua
@@ -173,6 +173,7 @@ end
 
 function BattleData:clear()
     self:clearGridSequence()
+    self:clearCacheBoardSkill()
 
     self.gridEntities = {}
     self.skillMap = {}