diff --git a/src/utils/convertFlowData.ts b/src/utils/convertFlowData.ts
index 6cd0236..6d9e862 100644
--- a/src/utils/convertFlowData.ts
+++ b/src/utils/convertFlowData.ts
@@ -4,13 +4,55 @@ import LocalNode from '@/components/FlowEditor/node/localNode/LocalNode';
 /**
  * 将提供的数据结构转换为适用于 flow editor 的 nodes 和 edges
  * @param flowData - 原始数据结构
+ * @param useDefault - 当flowData为空时是否返回默认的开始和结束节点
  * @returns 包含 nodes 和 edges 的对象
  */
-export const convertFlowData = (flowData: any) => {
+export const convertFlowData = (flowData: any, useDefault = true) => {
   const nodes: any[] = [];
   const edges: any[] = [];
 
-  if (!flowData || Object.keys(flowData).length === 0) return { nodes, edges };
+  if (!flowData || Object.keys(flowData).length === 0) {
+    // 如果useDefault为true且flowData为空，则返回默认的开始和结束节点
+    if (useDefault) {
+      return {
+        nodes: [
+          {
+            id: 'start',
+            type: 'start',
+            position: { x: 200, y: 200 },
+            data: {
+              title: '开始',
+              parameters: {
+                apiIns: [],
+                apiOuts: [{ name: 'start', desc: '', dataType: '', defaultValue: '' }],
+                dataIns: [],
+                dataOuts: []
+              },
+              type: 'start'
+            }
+          },
+          {
+            id: 'end',
+            type: 'end',
+            position: { x: 1200, y: 200 },
+            data: {
+              title: '结束',
+              parameters: {
+                apiIns: [{ name: 'end', desc: '', dataType: '', defaultValue: '' }],
+                apiOuts: [],
+                dataIns: [],
+                dataOuts: []
+              },
+              type: 'end'
+            }
+          }
+        ],
+        edges: []
+      };
+    }
+    // 否则返回空数组
+    return { nodes, edges };
+  }
 
   // 处理节点配置
   const nodeConfigs = flowData.main?.nodeConfigs || [];