diff --git a/daxpay-payment/daxpay-payment-admin/src/main/java/cn/daxpay/open/payment/admin/service/merchant/info/MerchantAdminService.java b/daxpay-payment/daxpay-payment-admin/src/main/java/cn/daxpay/open/payment/admin/service/merchant/info/MerchantAdminService.java
index ce6d15d90..0b83ae24e 100644
--- a/daxpay-payment/daxpay-payment-admin/src/main/java/cn/daxpay/open/payment/admin/service/merchant/info/MerchantAdminService.java
+++ b/daxpay-payment/daxpay-payment-admin/src/main/java/cn/daxpay/open/payment/admin/service/merchant/info/MerchantAdminService.java
@@ -121,9 +121,9 @@ public class MerchantAdminService {
         this.createMerchantAdmin(param,  merchant);
         merchantInfoManager.save(merchant);
         // 创建默认应用（名称按请求语言）
-        mchAppInfoService.createDefaultApp(merchant.getMchNo(), merchant.getMchName());
+        mchAppInfoService.createDefaultApp(merchant.getMchNo(), merchant.getMchShortName());
         // 创建默认门店（名称按请求语言）
-        mchStoreInfoService.createDefaultStore(merchant.getMchNo(), merchant.getMchName(), param.getPhone());
+        mchStoreInfoService.createDefaultStore(merchant.getMchNo(), merchant.getMchShortName(), param.getPhone());
     }
 
     /// 创建商户管理员
diff --git a/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/merchant/service/appinfo/MchAppInfoService.java b/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/merchant/service/appinfo/MchAppInfoService.java
index 67980e0d5..87396a6a1 100644
--- a/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/merchant/service/appinfo/MchAppInfoService.java
+++ b/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/merchant/service/appinfo/MchAppInfoService.java
@@ -85,12 +85,12 @@ public class MchAppInfoService {
 
     /// 为商户创建默认应用（启用 + defaultApp=true；名称按当前请求语言生成）
     ///
-    /// @param mchNo   商户号
-    /// @param mchName 商户名称（用于生成默认应用名）
-    public void createDefaultApp(String mchNo, String mchName) {
+    /// @param mchNo         商户号
+    /// @param mchShortName  商户简称（用于生成默认应用名）
+    public void createDefaultApp(String mchNo, String mchShortName) {
         MchAppInfo mchApp = new MchAppInfo();
-        // 默认应用名称（payment.merchant.defaultAppName，{0}=商户名）
-        mchApp.setAppName(I18nUtil.get("payment.merchant.defaultAppName", mchName));
+        // 默认应用名称（payment.merchant.defaultAppName，{0}=商户简称）
+        mchApp.setAppName(I18nUtil.get("payment.merchant.defaultAppName", mchShortName));
         mchApp.setDefaultApp(true);
         mchApp.setStatus(MchAppStatusEnum.ENABLE.getCode());
         mchApp.setAppId(this.generateAppId());
diff --git a/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/merchant/service/store/MchStoreInfoService.java b/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/merchant/service/store/MchStoreInfoService.java
index 05d6ef2ff..2118b129c 100644
--- a/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/merchant/service/store/MchStoreInfoService.java
+++ b/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/merchant/service/store/MchStoreInfoService.java
@@ -73,12 +73,12 @@ public class MchStoreInfoService {
     /// 为商户创建默认门店（启用 + defaultStore=true；名称按当前请求语言生成）
     ///
     /// @param mchNo         商户号
-    /// @param mchName       商户名称（用于生成默认门店名）
+    /// @param mchShortName  商户简称（用于生成默认门店名）
     /// @param contactPhone  联系电话（可空）
-    public void createDefaultStore(String mchNo, String mchName, String contactPhone) {
+    public void createDefaultStore(String mchNo, String mchShortName, String contactPhone) {
         MchStoreInfo store = new MchStoreInfo();
-        // 默认门店名称（payment.merchant.defaultStoreName，{0}=商户名）
-        store.setStoreName(I18nUtil.get("payment.merchant.defaultStoreName", mchName));
+        // 默认门店名称（payment.merchant.defaultStoreName，{0}=商户简称）
+        store.setStoreName(I18nUtil.get("payment.merchant.defaultStoreName", mchShortName));
         store.setContactPhone(contactPhone);
         store.setStatus(StoreStatusEnum.ENABLE.getCode());
         store.setDefaultStore(true);
diff --git a/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/merchant/service/user/MerchantUserService.java b/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/merchant/service/user/MerchantUserService.java
index 48a32ea8a..ae8f884e6 100644
--- a/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/merchant/service/user/MerchantUserService.java
+++ b/daxpay-payment/daxpay-payment-core/src/main/java/cn/daxpay/open/payment/merchant/service/user/MerchantUserService.java
@@ -77,9 +77,9 @@ public class MerchantUserService {
         this.createMerchantAdmin(param, merchant);
         merchantInfoManager.save(merchant);
         // 创建默认应用（名称按请求语言）
-        mchAppInfoService.createDefaultApp(merchant.getMchNo(), merchant.getMchName());
+        mchAppInfoService.createDefaultApp(merchant.getMchNo(), merchant.getMchShortName());
         // 创建默认门店（名称按请求语言）
-        mchStoreInfoService.createDefaultStore(merchant.getMchNo(), merchant.getMchName(), param.getPhone());
+        mchStoreInfoService.createDefaultStore(merchant.getMchNo(), merchant.getMchShortName(), param.getPhone());
     }
 
     /// 创建商户管理员