diff --git a/_doc/Task.md b/_doc/Task.md
index 4120a668a..016b965b2 100644
--- a/_doc/Task.md
+++ b/_doc/Task.md
@@ -10,6 +10,5 @@
 - x 结算台支持多商户
   - x 简单结算台
   - x 组合支付结算台
-- 储值卡多卡支付和退款演示
-  - 支付
-  - 退款
+- x 储值卡多卡支付
+  - x 支付
diff --git a/src/views/demo/payment/cashier/CombinationCashier.vue b/src/views/demo/payment/cashier/CombinationCashier.vue
index 7ccc33a35..72a7a2d5d 100644
--- a/src/views/demo/payment/cashier/CombinationCashier.vue
+++ b/src/views/demo/payment/cashier/CombinationCashier.vue
@@ -162,6 +162,7 @@
    */
   function mchAppChange() {
     mchAppDrop(form.mchCode).then(({ data }) => {
+      form.mchAppCode = ''
       mchAppList = data
     })
   }
diff --git a/src/views/demo/payment/cashier/SimpleCashier.vue b/src/views/demo/payment/cashier/SimpleCashier.vue
index 10790a05f..205990fbf 100644
--- a/src/views/demo/payment/cashier/SimpleCashier.vue
+++ b/src/views/demo/payment/cashier/SimpleCashier.vue
@@ -162,6 +162,7 @@
    */
   function mchAppChange() {
     mchAppDrop(form.mchCode).then(({ data }) => {
+      form.mchAppCode = ''
       mchAppList = data
     })
   }
diff --git a/src/views/demo/payment/multipleVoucher/MultipleVoucherCashier.vue b/src/views/demo/payment/multipleVoucher/MultipleVoucherCashier.vue
index e27e25f0f..5ac27b064 100644
--- a/src/views/demo/payment/multipleVoucher/MultipleVoucherCashier.vue
+++ b/src/views/demo/payment/multipleVoucher/MultipleVoucherCashier.vue
@@ -172,6 +172,7 @@
    */
   function mchAppChange() {
     mchAppDrop(form.mchCode).then(({ data }) => {
+      form.mchAppCode = ''
       mchAppList = data
     })
   }
diff --git a/src/views/modules/payment/channel/voucher/list/VoucherGeneration.vue b/src/views/modules/payment/channel/voucher/list/VoucherGeneration.vue
index e4f5ae208..67894f161 100644
--- a/src/views/modules/payment/channel/voucher/list/VoucherGeneration.vue
+++ b/src/views/modules/payment/channel/voucher/list/VoucherGeneration.vue
@@ -127,6 +127,7 @@
    */
   function mchAppChange() {
     mchAppDrop(form.mchCode).then(({ data }) => {
+      form.mchAppCode = ''
       mchAppList = data
     })
   }
diff --git a/src/views/modules/payment/channel/wallet/list/WalletCreate.vue b/src/views/modules/payment/channel/wallet/list/WalletCreate.vue
index e9f893b8f..14a606dfb 100644
--- a/src/views/modules/payment/channel/wallet/list/WalletCreate.vue
+++ b/src/views/modules/payment/channel/wallet/list/WalletCreate.vue
@@ -87,6 +87,7 @@
    */
   function mchAppChange() {
     mchAppDrop(form.mchCode).then(({ data }) => {
+      form.mchAppCode = ''
       mchAppList = data
     })
   }
diff --git a/src/views/modules/payment/channel/wallet/personal/PersonalWallet.vue b/src/views/modules/payment/channel/wallet/personal/PersonalWallet.vue
index 18efbabd6..787b6c05f 100644
--- a/src/views/modules/payment/channel/wallet/personal/PersonalWallet.vue
+++ b/src/views/modules/payment/channel/wallet/personal/PersonalWallet.vue
@@ -85,6 +85,7 @@
    */
   function mchAppChange() {
     mchAppDrop(form.mchCode).then(({ data }) => {
+      form.mchAppCode = ''
       mchAppList = data
     })
   }