diff --git a/frontend/src/pages/Workflow/Definition/Design/index.tsx b/frontend/src/pages/Workflow/Definition/Design/index.tsx
index 62eab614..46efc0e7 100644
--- a/frontend/src/pages/Workflow/Definition/Design/index.tsx
+++ b/frontend/src/pages/Workflow/Definition/Design/index.tsx
@@ -11,6 +11,7 @@ import {
     RedoOutlined,
     ScissorOutlined,
     SnippetsOutlined,
+    SelectOutlined,
 } from '@ant-design/icons';
 import {Graph, Cell} from '@antv/x6';
 import '@antv/x6-plugin-snapline';
@@ -420,6 +421,20 @@ const WorkflowDesign: React.FC = () => {
                         extra={
                             <Space>
                                 <Space.Compact>
+                                    <Button
+                                        icon={<SelectOutlined />}
+                                        onClick={() => {
+                                            if (!graph) return;
+                                            const cells = graph.getCells();
+                                            if (cells.length === 0) {
+                                                message.info('当前没有可选择的元素');
+                                                return;
+                                            }
+                                            graph.resetSelection();
+                                            graph.select(cells);
+                                        }}
+                                        title="全选"
+                                    />
                                     <Button
                                         icon={<CopyOutlined />}
                                         onClick={() => {