diff --git a/src/api/mes/cal/holiday/index.ts b/src/api/mes/cal/holiday/index.ts
index 503d3964e..45c066983 100644
--- a/src/api/mes/cal/holiday/index.ts
+++ b/src/api/mes/cal/holiday/index.ts
@@ -11,9 +11,9 @@ export interface CalHolidayVO {
 
 // MES 假期设置 API
 export const CalHolidayApi = {
-  // 查询所有假期设置列表
-  getHolidayList: async () => {
-    return await request.get({ url: `/mes/cal/holiday/list` })
+  // 查询假期设置列表（支持可选日期范围过滤）
+  getHolidayList: async (params?: { startDay?: string; endDay?: string }) => {
+    return await request.get({ url: `/mes/cal/holiday/list`, params })
   },
 
   // 根据日期查询假期设置
diff --git a/src/views/mes/cal/holiday/index.vue b/src/views/mes/cal/holiday/index.vue
index b2f69d21c..4adcf7e48 100644
--- a/src/views/mes/cal/holiday/index.vue
+++ b/src/views/mes/cal/holiday/index.vue
@@ -47,11 +47,16 @@ const message = useMessage()
 const currentDate = ref(new Date())
 const holidaySet = ref(new Set<string>()) // 节假日日期集合
 const formRef = ref()
+const lastFetchedMonth = ref('') // 用于避免同月重复请求
 
-/** 获取假期列表 */
+/** 获取假期列表（按当前日历可见范围过滤） */
 const getList = async () => {
   holidaySet.value.clear()
-  const list = await CalHolidayApi.getHolidayList()
+  // 计算日历组件可见范围：当月 ± 1 月（el-calendar 会显示上月末和下月初）
+  const current = dayjs(currentDate.value)
+  const startDay = current.subtract(1, 'month').startOf('month').format('YYYY-MM-DD 00:00:00')
+  const endDay = current.add(1, 'month').endOf('month').format('YYYY-MM-DD 23:59:59')
+  const list = await CalHolidayApi.getHolidayList({ startDay, endDay })
   if (list) {
     list.forEach((item: CalHolidayVO) => {
       // 后端返回的 day 为时间戳（long），格式化为 yyyy-MM-dd
@@ -61,8 +66,17 @@ const getList = async () => {
       }
     })
   }
+  lastFetchedMonth.value = current.format('YYYY-MM')
 }
 
+/** 监听月份切换，重新加载可见范围内的数据 */
+watch(currentDate, (newDate) => {
+  const newMonth = dayjs(newDate).format('YYYY-MM')
+  if (newMonth !== lastFetchedMonth.value) {
+    getList()
+  }
+})
+
 /** 点击日期 */
 const onClickDay = (data: { type: string; day: string }) => {
   // 非当前月日期，不处理（避免切换月份）