diff --git a/src/app/canvas-share-data.service.ts b/src/app/canvas-share-data.service.ts
index aa7fc19..92ade07 100644
--- a/src/app/canvas-share-data.service.ts
+++ b/src/app/canvas-share-data.service.ts
@@ -86,6 +86,13 @@ export class CanvasShareDataService {
    * 更新建筑数据
    */
   public updateBuildingData() {
+    // 删除所有当前层数据
+    Object.keys(this.originalcompanyBuildingData.data).forEach((key) => {
+      if (this.originalcompanyBuildingData.data[key].FloorId === this.selectStorey.id) {
+        delete this.originalcompanyBuildingData.data[key];
+      }
+    });
+    // 把当前层中所有数据添加到建筑数据中做同步使用
     Object.keys(this.originaleveryStoreyData.data).forEach((key) => {
       this.originalcompanyBuildingData.data[key] = this.originaleveryStoreyData.data[key];
     });