diff --git a/frontend/src/pages/Workflow/NodeDesign/Design.tsx b/frontend/src/pages/Workflow/NodeDesign/Design.tsx
index bc47dab2..2fc5c880 100644
--- a/frontend/src/pages/Workflow/NodeDesign/Design.tsx
+++ b/frontend/src/pages/Workflow/NodeDesign/Design.tsx
@@ -55,6 +55,20 @@ const NodeDesignForm: React.FC = () => {
     // 获取当前节点可用的 Tab 列表
     const getAvailableTabs = (node: NodeDesignData | null) => {
         if (!node) return [];
+        
+        // 如果是修改模式，从nodeDefinitions中找到对应的节点定义
+        if (nodeData) {
+            const nodeDefinition = nodeDefinitions.find(def => def.nodeCode === nodeData.nodeType);
+            if (nodeDefinition) {
+                return TAB_CONFIG.filter(tab => {
+                    // 使用节点定义中的schema
+                    const value = nodeDefinition[tab.schemaKey as keyof NodeDesignData];
+                    return value !== null && value !== undefined;
+                });
+            }
+        }
+        
+        // 新建模式
         return TAB_CONFIG.filter(tab => {
             const value = node[tab.schemaKey as keyof NodeDesignData];
             return value !== null && value !== undefined;
@@ -212,15 +226,48 @@ const NodeDesignForm: React.FC = () => {
     // 渲染 Tab 内容
     const renderTabContent = (schemaKey: string) => {
         if (!selectedNode) return null;
-        const schema = selectedNode[schemaKey as keyof NodeDesignData];
+
+        // 获取schema和初始值
+        let schema;
+        let initialValues = {};
+
+        if (nodeData) {
+            // 编辑模式
+            const nodeDefinition = nodeDefinitions.find(def => def.nodeCode === nodeData.nodeType);
+            if (!nodeDefinition) return null;
+
+            if (schemaKey === 'uiVariables') {
+                // UI配置：使用nodeDefinitions中的schema定义，使用nodeData中的实际数据作为初始值
+                schema = nodeDefinition.uiVariables;
+                initialValues = nodeData.uiVariables || {};
+            } else {
+                // 其他配置：使用schema中的定义
+                schema = nodeDefinition[schemaKey as keyof NodeDesignData];
+                // 只在非UI配置时使用默认值
+                initialValues = getDefaultValues(schema);
+            }
+        } else {
+            // 新建模式
+            schema = selectedNode[schemaKey as keyof NodeDesignData];
+            initialValues = getDefaultValues(schema);
+        }
+
         if (!schema) return null;
 
+        console.log(`Rendering ${schemaKey}:`, {
+            schema,
+            initialValues
+        });
+        
+        const formColumns = convertToProFormSchema(schema);
+        
         return (
             <BetaSchemaForm
+                key={`${selectedNode.nodeCode}-${schemaKey}`}
                 formRef={schemaKey === 'uiVariables' ? uiFormRef : undefined}
                 layoutType="Form"
-                initialValues={getDefaultValues(schema)}
-                columns={convertToProFormSchema(schema)}
+                initialValues={initialValues}
+                columns={formColumns}
                 submitter={false}
             />
         );