diff --git a/src/component/Detail/DesignDetail.vue b/src/component/Detail/DesignDetail.vue
index ffd06964..d7f5f685 100644
--- a/src/component/Detail/DesignDetail.vue
+++ b/src/component/Detail/DesignDetail.vue
@@ -391,7 +391,7 @@ export default defineComponent({
 					rv:rv,
 					fun:setRevocation
 				}
-				detailData.designDetail.oldModel = detailData.designDetail.newModel
+				detailData.designDetail.oldModel = JSON.parse(JSON.stringify(detailData.designDetail.newModel))
 				delete detailData.designDetail.newModel
 				store.commit('DesignDetail/setPraeview',value)
 				detailData.loadingShow = false