diff --git a/daxpay-payment/daxpay-payment-common/src/main/java/cn/daxpay/open/payment/merchant/convert/route/scene/PayRouteSceneConfigConvert.java b/daxpay-payment/daxpay-payment-common/src/main/java/cn/daxpay/open/payment/merchant/convert/route/scene/PayRouteSceneConfigConvert.java
index a9f464950..3808a5352 100644
--- a/daxpay-payment/daxpay-payment-common/src/main/java/cn/daxpay/open/payment/merchant/convert/route/scene/PayRouteSceneConfigConvert.java
+++ b/daxpay-payment/daxpay-payment-common/src/main/java/cn/daxpay/open/payment/merchant/convert/route/scene/PayRouteSceneConfigConvert.java
@@ -3,16 +3,15 @@ package cn.daxpay.open.payment.merchant.convert.route.scene;
 import cn.daxpay.open.payment.merchant.entity.route.scene.PayRouteSceneConfig;
 import cn.daxpay.open.payment.merchant.result.route.scene.PayRouteSceneConfigResult;
 import org.mapstruct.Mapper;
-import org.mapstruct.Mapping;
 import org.mapstruct.factory.Mappers;
 
 /// # 支付通道路由场景模式配置转换
 ///
+/// strategyId: 实体 Long → Result String，MapStruct 内置 null 安全数值转字符串
 @Mapper
 public interface PayRouteSceneConfigConvert {
 
     PayRouteSceneConfigConvert CONVERT = Mappers.getMapper(PayRouteSceneConfigConvert.class);
 
-    @Mapping(target = "strategyId", expression = "java(entity.getStrategyId() == null ? null : String.valueOf(entity.getStrategyId()))")
     PayRouteSceneConfigResult toResult(PayRouteSceneConfig entity);
 }