diff --git a/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.js b/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.js
index 3f47076ce3..ff8a4528d5 100644
--- a/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.js
+++ b/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.js
@@ -14,8 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
+import Vue from 'vue'
+let v = new Vue()
 import _ from 'lodash'
+import i18n from '@/module/i18n'
 import { jsPlumb } from 'jsplumb'
 import JSP from './plugIn/jsPlumbHandle'
 import DownChart from './plugIn/downChart'
@@ -73,6 +75,7 @@ Dag.prototype.create = function () {
  * Action event on the right side of the toolbar
  */
 Dag.prototype.toolbarEvent = function ({ item, code, is }) {
+  let self = this
   switch (code) {
     case 'pointer':
       JSP.handleEventPointer(is)
@@ -87,8 +90,21 @@ Dag.prototype.toolbarEvent = function ({ item, code, is }) {
       JSP.handleEventScreen({ item, is })
       break
     case 'download':
-      DownChart.download({
-        dagThis: this.dag
+      v.$modal.dialog({
+        width: 350,
+        closable: false,
+        showMask: true,
+        maskClosable: true,
+        title: i18n.$t('Download'),
+        content: i18n.$t('Please confirm whether the workflow has been saved before downloading'),
+        ok: {
+          handle (e) {
+            DownChart.download({
+              dagThis: self.dag
+            })
+          }
+        },
+        cancel: {}
       })
       break
   }
diff --git a/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/plugIn/downChart.js b/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/plugIn/downChart.js
index d2051c2c86..1c851a175f 100644
--- a/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/plugIn/downChart.js
+++ b/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/plugIn/downChart.js
@@ -19,7 +19,7 @@ import _ from 'lodash'
 import canvg from 'canvg'
 import { tasksAll } from './util'
 import html2canvas from 'html2canvas'
-// import { findComponentDownward } from '@/module/util/'
+import { findComponentDownward } from '@/module/util/'
 
 const DownChart = function () {
   this.dag = {}
@@ -111,10 +111,10 @@ DownChart.prototype.download = function ({ dagThis }) {
       }, 100)
 
       // To refresh the dag instance, otherwise you can't re-plot
-      // setTimeout(() => {
-      //   // Refresh current dag
-      //   findComponentDownward(this.dag.$root, `${this.dag.type}-details`).init()
-      // }, 500)
+      setTimeout(() => {
+        // Refresh current dag
+        findComponentDownward(this.dag.$root, `${this.dag.type}-details`).init()
+      }, 500)
     })
   })
 }
diff --git a/dolphinscheduler-ui/src/js/module/i18n/locale/en_US.js b/dolphinscheduler-ui/src/js/module/i18n/locale/en_US.js
index fdb897fc9c..aeba322855 100755
--- a/dolphinscheduler-ui/src/js/module/i18n/locale/en_US.js
+++ b/dolphinscheduler-ui/src/js/module/i18n/locale/en_US.js
@@ -593,5 +593,6 @@ export default {
   'Successful branch flow and failed branch flow are required': 'conditions node Successful and failed branch flow are required',
   'Unauthorized or deleted resources': 'Unauthorized or deleted resources',
   'Please delete all non-existent resources': 'Please delete all non-existent resources',
-  'The Worker group no longer exists, please select the correct Worker group!': 'The Worker group no longer exists, please select the correct Worker group!'
+  'The Worker group no longer exists, please select the correct Worker group!': 'The Worker group no longer exists, please select the correct Worker group!',
+  'Please confirm whether the workflow has been saved before downloading': 'Please confirm whether the workflow has been saved before downloading'
 }
diff --git a/dolphinscheduler-ui/src/js/module/i18n/locale/zh_CN.js b/dolphinscheduler-ui/src/js/module/i18n/locale/zh_CN.js
index 777173f6ce..6567d38429 100755
--- a/dolphinscheduler-ui/src/js/module/i18n/locale/zh_CN.js
+++ b/dolphinscheduler-ui/src/js/module/i18n/locale/zh_CN.js
@@ -593,5 +593,6 @@ export default {
   'Successful branch flow and failed branch flow are required': 'conditions节点成功和失败分支流转必填',
   'Unauthorized or deleted resources': '未授权或已删除资源',
   'Please delete all non-existent resources': '请删除所有未授权或已删除资源',
-  'The Worker group no longer exists, please select the correct Worker group!': '该Worker分组已经不存在，请选择正确的Worker分组！'
+  'The Worker group no longer exists, please select the correct Worker group!': '该Worker分组已经不存在，请选择正确的Worker分组！',
+  'Please confirm whether the workflow has been saved before downloading': '下载前请确定工作流是否已保存'
 }