diff --git a/frontend/src/views/api-keys/components/ApiKeyBudgetCell.vue b/frontend/src/views/api-keys/components/ApiKeyBudgetCell.vue
index a2bfc82ee..4f9eaf935 100644
--- a/frontend/src/views/api-keys/components/ApiKeyBudgetCell.vue
+++ b/frontend/src/views/api-keys/components/ApiKeyBudgetCell.vue
@@ -10,8 +10,8 @@ const windows = computed(() => [
   { label: '周', heading: '周用量', used: props.apiKey.weeklyUsedUsd, limit: props.apiKey.weeklyLimitUsd, reset: props.apiKey.weeklyResetsAt },
 ])
 function amount(value: string) {
-  // 列表显示两位小数，明细直接使用原始字符串，保留全部金额精度。
-  return Number(value).toLocaleString('en-US', { minimumFractionDigits: 2, maximumFractionDigits: 2 })
+  // 列表最多显示两位小数，不补末尾零；明细保留原始金额的全部精度。
+  return Number(value).toLocaleString('en-US', { maximumFractionDigits: 2 })
 }
 </script>