diff --git a/frontend/src/components/admin/payment/AdminOrderDetail.vue b/frontend/src/components/admin/payment/AdminOrderDetail.vue
index 9ab1ba95540..e278a5c6d5b 100644
--- a/frontend/src/components/admin/payment/AdminOrderDetail.vue
+++ b/frontend/src/components/admin/payment/AdminOrderDetail.vue
@@ -130,13 +130,16 @@ const props = defineProps<{
 /** 充值金额 (base amount before fee) = pay_amount - fee = pay_amount / (1 + fee_rate/100) */
 const baseAmount = computed(() => {
   if (!props.order) return 0
-  if (props.order.fee_rate <= 0) return props.order.pay_amount
-  return props.order.pay_amount / (1 + props.order.fee_rate / 100)
+  const feeRate = Number(props.order.fee_rate) || 0
+  if (feeRate <= 0) return props.order.pay_amount
+  return props.order.pay_amount / (1 + feeRate / 100)
 })
 
 /** 手续费 = pay_amount - baseAmount */
 const feeAmount = computed(() => {
-  if (!props.order || props.order.fee_rate <= 0) return 0
+  if (!props.order) return 0
+  const feeRate = Number(props.order.fee_rate) || 0
+  if (feeRate <= 0) return 0
   return props.order.pay_amount - baseAmount.value
 })
 
diff --git a/frontend/src/views/user/PaymentResultView.vue b/frontend/src/views/user/PaymentResultView.vue
index f8ed37d9630..d4f5feef725 100644
--- a/frontend/src/views/user/PaymentResultView.vue
+++ b/frontend/src/views/user/PaymentResultView.vue
@@ -137,13 +137,17 @@ const refreshAttempts = ref(0)
 
 /** 充值金额 = pay_amount / (1 + fee_rate/100)，fee_rate=0 时等于 pay_amount */
 const baseAmount = computed(() => {
-  if (!order.value || order.value.fee_rate <= 0) return order.value?.pay_amount ?? 0
-  return Math.round((order.value.pay_amount / (1 + order.value.fee_rate / 100)) * 100) / 100
+  if (!order.value) return 0
+  const feeRate = Number(order.value.fee_rate) || 0
+  if (feeRate <= 0) return order.value.pay_amount ?? 0
+  return Math.round((order.value.pay_amount / (1 + feeRate / 100)) * 100) / 100
 })
 
 /** 手续费 = pay_amount - baseAmount */
 const feeAmount = computed(() => {
-  if (!order.value || order.value.fee_rate <= 0) return 0
+  if (!order.value) return 0
+  const feeRate = Number(order.value.fee_rate) || 0
+  if (feeRate <= 0) return 0
   return Math.round((order.value.pay_amount - baseAmount.value) * 100) / 100
 })