diff --git a/src/views/settlement/formal-settlement.vue b/src/views/settlement/formal-settlement.vue
index c4b9da0..bbd00d3 100644
--- a/src/views/settlement/formal-settlement.vue
+++ b/src/views/settlement/formal-settlement.vue
@@ -253,6 +253,10 @@ export default {
       if (detailNo) this.openRouteDetail(detailNo);
     },
   },
+  created() {
+    // 标签机制按 fullPath 缓存同页多实例：仅当前路由实例应响应 detailNo 跳转，防止缓存旧实例也弹窗
+    this.ownFullPath = this.$route.fullPath;
+  },
   mounted() {
     this.loadOrganizationOptions();
     this.loadTable();
@@ -342,7 +346,7 @@ export default {
     },
     async openRouteDetail(detailNo = this.$route.query.detailNo) {
       const formalSettlementNo = String(detailNo || '').trim();
-      if (!formalSettlementNo) return;
+      if (!formalSettlementNo || this.ownFullPath !== this.$route.fullPath) return;
       const response = await api.getList(1, 10, { formalSettlementNo });
       const data = this.unwrapData(response);
       const row = (data.records || []).find(item => item.formalSettlementNo === formalSettlementNo);