diff --git a/frontend/src/pages/Workflow/Definition/Design/index.tsx b/frontend/src/pages/Workflow/Definition/Design/index.tsx
index 7e6e2e2e..e1a31849 100644
--- a/frontend/src/pages/Workflow/Definition/Design/index.tsx
+++ b/frontend/src/pages/Workflow/Definition/Design/index.tsx
@@ -88,6 +88,14 @@ const WorkflowDesign: React.FC = () => {
                 rubberband: true,
                 movable: true,
                 showNodeSelectionBox: true,
+                strict: true,
+                selectCellOnMoved: true,
+                selectNodeOnMoved: true,
+                selectEdgeOnMoved: true,
+                multipleSelectionModifiers: ['ctrl', 'meta'],
+                showEdgeSelectionBox: true,
+                showAnchorSelectionBox: true,
+                pointerEvents: 'auto'
             },
             snapline: true,
             keyboard: {
@@ -120,7 +128,25 @@ const WorkflowDesign: React.FC = () => {
             },
         });
         
-        graph.use(new Selection());
+        // 初始化Selection插件
+        const selection = new Selection({
+            enabled: true,
+            multiple: true,
+            rubberband: true,
+            movable: true,
+            showNodeSelectionBox: true,
+            strict: true,
+            selectCellOnMoved: true,
+            selectNodeOnMoved: true,
+            selectEdgeOnMoved: true,
+            multipleSelectionModifiers: ['ctrl', 'meta'],
+            showEdgeSelectionBox: true,
+            showAnchorSelectionBox: true,
+            pointerEvents: 'auto'
+        });
+        console.log('Initializing Selection plugin:', selection);
+        graph.use(selection);
+        
         graph.use(new MiniMap({
             container: minimapContainerRef.current!,
             width: minimapWidth,
@@ -782,18 +808,39 @@ const WorkflowDesign: React.FC = () => {
                             </Tooltip>
                         </Space.Compact>
                         <Space.Compact>
-                            <Tooltip title="选择">
+                            <Tooltip title="全选">
                                 <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);
+                                        
+                                        // 添加小延时确保图形已完全初始化
+                                        setTimeout(() => {
+                                            const cells = graph.getCells();
+                                            console.log('All cells:', cells);
+                                            
+                                            if (cells.length === 0) {
+                                                message.info('当前没有可选择的元素');
+                                                return;
+                                            }
+                                            
+                                            // 打印当前选择状态
+                                            console.log('Current selection before reset:', graph.getSelectedCells());
+                                            graph.resetSelection();
+                                            console.log('Selection after reset:', graph.getSelectedCells());
+                                            
+                                            // 尝试选择所有单元格
+                                            try {
+                                                graph.select(cells);
+                                                console.log('Selection after select all:', graph.getSelectedCells());
+                                            } catch (error) {
+                                                console.error('Error selecting cells:', error);
+                                            }
+                                            
+                                            // 检查Selection插件是否正确初始化
+                                            const selection = graph.getPlugin('selection');
+                                            console.log('Selection plugin:', selection);
+                                        }, 100);
                                     }}
                                 />
                             </Tooltip>