diff --git a/yack-web/src/views/iot/project/index.vue b/yack-web/src/views/iot/project/index.vue
index 669395b9..98094fb8 100644
--- a/yack-web/src/views/iot/project/index.vue
+++ b/yack-web/src/views/iot/project/index.vue
@@ -161,7 +161,7 @@
         </el-dialog>
 
         <!-- 地图坐标选择对话框 -->
-        <el-dialog title="地图选点" :visible.sync="mapPickerOpen" width="900px" append-to-body @closed="disposeMap">
+        <el-dialog title="地图选点" :visible.sync="mapPickerOpen" width="900px" append-to-body @closed="disposeMap" @opened="initTiandituMap">
             <div style="margin-bottom: 8px; display: flex">
                 <span style="white-space: nowrap; color: #606266; width: 100px; flex-shrink: 0;">按关键字搜索：</span>
                 <el-input v-model="pickerSearchAddress" placeholder="输入中文地址，如：北京市海淀区莲花池西路28号" clearable :disabled="geocoding" @keyup.enter.native="searchAddress"  style="flex: 1" />
@@ -173,7 +173,7 @@
                 <el-button type="primary" style="margin-left: 8px; flex-shrink: 0" @click="locateByCoordinate">定位</el-button>
             </div>
             <div style="height: 500px; border: 1px solid #ddd; position: relative">
-                <div ref="mapContainer" style="width: 100%; height: 100%"></div>
+                <div ref="mapContainer" :key="mapContainerKey" style="width: 100%; height: 100%"></div>
                 <div v-if="geocoding" style="position: absolute; top: 8px; right: 8px; background: rgba(255,255,255,0.9); padding: 4px 10px; border-radius: 3px; font-size: 12px; z-index: 999">
                     <i class="el-icon-loading"></i> 地址解析中...
                 </div>
@@ -217,6 +217,7 @@ export default {
             open: false,
             isView: false,
             mapPickerOpen: false,
+            mapContainerKey: 0,
             pickerLongitude: null,
             pickerLatitude: null,
             pickerAddress: '',
@@ -422,6 +423,9 @@ export default {
         // ==================== 地图选点 ====================
         /** 打开地图选点 */
         openMapPicker() {
+            // 先清理可能残留的旧地图实例
+            // 对话框快速关闭再打开时 @closed 可能未触发，导致 tiandituMap 仍指向旧实例
+            this.resetMap();
             this.pickerLongitude = this.form.longitude != null ? this.form.longitude : null;
             this.pickerLatitude = this.form.latitude != null ? this.form.latitude : null;
             this.pickerAddress = this.form.address || '';
@@ -430,9 +434,6 @@ export default {
                 ? `${this.form.longitude},${this.form.latitude}`
                 : '';
             this.mapPickerOpen = true;
-            this.$nextTick(() => {
-                this.initTiandituMap();
-            });
         },
         /** 根据经纬度定位 */
         locateByCoordinate() {
@@ -517,7 +518,8 @@ export default {
         initTiandituMap() {
             loadTiandituMap().then(T => {
                 const container = this.$refs.mapContainer;
-                if (!container) return;
+                // 弹窗可能已在脚本加载完成前被关闭，此时不再创建地图
+                if (!container || !this.mapPickerOpen) return;
 
                 const hasCoord = this.pickerLongitude != null && this.pickerLatitude != null;
                 const centerLng = hasCoord ? this.pickerLongitude : 104.0;
@@ -532,9 +534,6 @@ export default {
                     return;
                 }
 
-                // 天地图 v4 没有 destroy()，先清理旧实例再重建
-                this.resetMap();
-
                 const map = new T.Map(container);
                 map.centerAndZoom(new T.LngLat(centerLng, centerLat), zoom);
                 // 天地图 v4 默认关闭部分交互，需显式启用：拖拽、滚轮缩放、双击缩放、连续缩放
@@ -691,6 +690,11 @@ export default {
                 }
                 this.tiandituMap = null;
                 this.tiandituClickHandler = null;
+                // 天地图 v4 会把拖拽/滚轮等监听直接绑定在容器 DOM 元素上（存于 element._tdt_events），
+                // 仅清空 innerHTML 无法移除这些监听。旧地图的 mousedown 会先执行并设置全局拖拽标记
+                // T.nY._dragging，导致新地图的拖拽处理器直接放弃，表现为第二次打开后无法拖动地图。
+                // 这里更换 key 让 Vue 重建一个全新的容器元素，旧元素连同其监听一起被移除。
+                this.mapContainerKey += 1;
             }
             const container = this.$refs.mapContainer;
             if (container) {