diff --git a/frontend/src/views/BudgetManagement.vue b/frontend/src/views/BudgetManagement.vue
index e28f506a..73e25c36 100644
--- a/frontend/src/views/BudgetManagement.vue
+++ b/frontend/src/views/BudgetManagement.vue
@@ -496,13 +496,20 @@ async function loadPublishedMaps() {
   } catch { publishedMaps.value = []; noMap.value = true }
 }
 
-function onMapSelect(id: number) {
+async function onMapSelect(id: number) {
   selectedMap.value = publishedMaps.value.find(m => m.id === id) || null
   filterVersion.value = ''  // 切换地图清空版本筛选（重新加载后由用户选择）
-  loadVersions()            // 加载该地图年度版本列表供筛选
+  await loadVersions()      // 加载该地图年度版本列表
+  selectDefaultVersion()    // 默认选中当前active版本, 避免全版本堆叠
   loadBudget()
 }
 
+// 加载版本后默认选中当前active版本（避免全版本堆叠重复期间, 2026-08-27）
+function selectDefaultVersion() {
+  const cur = versionsList.value.find((v: any) => v.status === 'active') || versionsList.value[0]
+  if (cur) filterVersion.value = cur.version
+}
+
 function getMapKpiCodes(): Set<string> {
   const codes = new Set<string>(); if (!selectedMap.value) return codes
   let dims = selectedMap.value.dimensions