diff --git a/assets/script/game/hero/SCastSystem.ts b/assets/script/game/hero/SCastSystem.ts
index a598771c..237178ff 100644
--- a/assets/script/game/hero/SCastSystem.ts
+++ b/assets/script/game/hero/SCastSystem.ts
@@ -208,7 +208,7 @@ export class SCastSystem extends ecs.ComblockSystem implements ecs.ISystemUpdate
                 model.add_hp(addHp);
                 target.health(addHp);
             } else if (kind === SkillKind.Shield && sAp !== 0) {
-                const addShield = Math.floor(sAp*_cAttrsComp.ap);
+                const addShield = Math.floor(sAp*_cAttrsComp.ap/100);
                 model.add_shield(addShield);
             }
             if (!config.buffs || config.buffs.length === 0) continue;