diff --git a/frontend/src/pages/Workflow/Definition/Design/components/ExpressionModal.tsx b/frontend/src/pages/Workflow/Definition/Design/components/ExpressionModal.tsx
new file mode 100644
index 00000000..839bb92c
--- /dev/null
+++ b/frontend/src/pages/Workflow/Definition/Design/components/ExpressionModal.tsx
@@ -0,0 +1,93 @@
+import React, { useState } from 'react';
+import { Modal, Form, Input, InputNumber, Radio } from 'antd';
+import { Edge } from '@antv/x6';
+import { ConditionType, EdgeCondition } from '../types';
+
+interface ExpressionModalProps {
+    visible: boolean;
+    edge: Edge;
+    onOk: (condition: EdgeCondition) => void;
+    onCancel: () => void;
+}
+
+const ExpressionModal: React.FC<ExpressionModalProps> = ({
+    visible,
+    edge,
+    onOk,
+    onCancel
+}) => {
+    const [form] = Form.useForm();
+    const currentCondition = edge.getProp('condition') as EdgeCondition;
+
+    const handleOk = async () => {
+        try {
+            const values = await form.validateFields();
+            onOk(values);
+        } catch (error) {
+            console.error('表单验证失败:', error);
+        }
+    };
+
+    return (
+        <Modal
+            title="编辑条件"
+            open={visible}
+            onOk={handleOk}
+            onCancel={onCancel}
+            width={600}
+        >
+            <Form
+                form={form}
+                layout="vertical"
+                initialValues={currentCondition || {
+                    type: 'EXPRESSION',
+                    priority: 10
+                }}
+            >
+                <Form.Item
+                    name="type"
+                    label="条件类型"
+                    rules={[{ required: true }]}
+                >
+                    <Radio.Group>
+                        <Radio value="EXPRESSION">表达式</Radio>
+                        <Radio value="DEFAULT">默认路径</Radio>
+                    </Radio.Group>
+                </Form.Item>
+
+                <Form.Item
+                    noStyle
+                    shouldUpdate={(prevValues, currentValues) => prevValues.type !== currentValues.type}
+                >
+                    {({ getFieldValue }) => {
+                        const type = getFieldValue('type');
+                        return type === 'EXPRESSION' ? (
+                            <Form.Item
+                                name="expression"
+                                label="条件表达式"
+                                rules={[{ required: true, message: '请输入条件表达式' }]}
+                                extra="支持使用 ${变量名} 引用流程变量，例如：${amount} > 1000"
+                            >
+                                <Input.TextArea
+                                    placeholder="请输入条件表达式"
+                                    rows={4}
+                                />
+                            </Form.Item>
+                        ) : null;
+                    }}
+                </Form.Item>
+
+                <Form.Item
+                    name="priority"
+                    label="优先级"
+                    rules={[{ required: true }]}
+                    extra="数字越小优先级越高"
+                >
+                    <InputNumber min={1} max={999} />
+                </Form.Item>
+            </Form>
+        </Modal>
+    );
+};
+
+export default ExpressionModal; 
\ No newline at end of file
diff --git a/frontend/src/pages/Workflow/Definition/Design/index.tsx b/frontend/src/pages/Workflow/Definition/Design/index.tsx
index 0ed011e2..3bd60e17 100644
--- a/frontend/src/pages/Workflow/Definition/Design/index.tsx
+++ b/frontend/src/pages/Workflow/Definition/Design/index.tsx
@@ -44,6 +44,8 @@ import {
 } from './constants';
 import './index.less';
 import {NodeDefinitionResponse, NodeDesignDataResponse} from "@/pages/Workflow/NodeDesign/types";
+import ExpressionModal from './components/ExpressionModal';
+import { EdgeCondition } from './types';
 
 const WorkflowDesign: React.FC = () => {
     const {id} = useParams<{ id: string }>();
@@ -60,6 +62,8 @@ const WorkflowDesign: React.FC = () => {
     const [isNodeDefinitionsLoaded, setIsNodeDefinitionsLoaded] = useState(false);
     const [forceUpdate, setForceUpdate] = useState(false);
     const [scale, setScale] = useState(1);
+    const [expressionModalVisible, setExpressionModalVisible] = useState(false);
+    const [selectedEdge, setSelectedEdge] = useState<Edge | null>(null);
 
     // 初始化图形
     const initGraph = () => {
@@ -531,7 +535,7 @@ const WorkflowDesign: React.FC = () => {
 
         // 节点点击事件
         graph.on('node:click', ({node}) => {
-            // ��取当前选中的节点
+            // 取当前选中的节点
             const selectedNode = graph.getSelectedCells()[0];
 
             // 如果有其他节点被选中，恢复其样式
@@ -867,6 +871,15 @@ const WorkflowDesign: React.FC = () => {
                 port.setAttribute('style', 'visibility: hidden');
             });
         });
+
+        // 添加边的双击事件
+        graph.on('edge:dblclick', ({ edge }) => {
+            const sourceNode = graph.getCellById(edge.getSourceCellId());
+            if (sourceNode.getProp('nodeType') === 'GATEWAY_NODE') {
+                setSelectedEdge(edge);
+                setExpressionModalVisible(true);
+            }
+        });
     };
 
     // 处理复制操作
@@ -893,7 +906,7 @@ const WorkflowDesign: React.FC = () => {
         message.success('已剪切');
     };
 
-    // 处理粘贴操���
+    // 处理粘贴操作
     const handlePaste = () => {
         if (!graph) return;
         if (graph.isClipboardEmpty()) {
@@ -962,7 +975,7 @@ const WorkflowDesign: React.FC = () => {
                         return port?.id;
                     };
 
-                    // 获取源节点的输出端口（一定���out组）
+                    // 获取源节点的输出端口（一定是out组）
                     const sourcePort = getPortByGroup(sourceNode, 'out');
 
                     // 获取目标节点的输入端口（一定是in组）
@@ -1123,48 +1136,35 @@ const WorkflowDesign: React.FC = () => {
             }
 
             // 获取所有节点和边的数据
-            const nodes = graph.getNodes().map(node => {
-                const nodeType = node.getProp('nodeType');
-                const graphData = node.getProp('graph') || {};
-                const position = node.getPosition();
-                const {
-                    uiVariables,
-                    panelVariables,
-                    localVariables,
-                    formVariablesSchema,
-                    ...rest
-                } = graphData;
-                return {
-                    id: node.id,
-                    nodeCode: nodeType,
-                    nodeType: nodeType,
-                    nodeName: node.attr('label/text'),
-                    uiVariables: {
-                        ...uiVariables,
-                        position: position
-                    },
-                    panelVariables,
-                    localVariables,
-                    formVariablesSchema
-                };
-            });
-
-            const edges = graph.getEdges().map(edge => ({
-                id: edge.id,
-                from: edge.getSourceCellId(),
-                to: edge.getTargetCellId(),
-                name: edge.getLabels()?.[0]?.attrs?.label?.text || '',
-                config: {
-                    type: 'sequence'
-                }
+            const nodes = graph.getNodes().map(node => ({
+                id: node.id,
+                nodeCode: node.getProp('nodeType'),
+                nodeType: node.getProp('nodeType'),
+                nodeName: node.attr('label/text'),
+                uiVariables: {
+                    ...node.getProp('graph')?.uiVariables,
+                    position: node.getPosition()
+                },
+                panelVariables: node.getProp('graph')?.panelVariables,
+                localVariables: node.getProp('graph')?.localVariables,
+                formVariablesSchema: node.getProp('graph')?.formVariablesSchema
             }));
 
-            // 收集并合并所有节点的 formVariablesSchema
-            const allFormSchemas = nodes
-                .map(node => node.formVariablesSchema)
-                .filter(schema => schema); // 过滤掉空值
-
-            const mergedFormSchema = mergeFormVariablesSchemas(allFormSchemas);
+            const edges = graph.getEdges().map(edge => {
+                const sourceNode = graph.getCellById(edge.getSourceCellId());
+                const condition = edge.getProp('condition');
+                
+                return {
+                    id: edge.id,
+                    from: edge.getSourceCellId(),
+                    to: edge.getTargetCellId(),
+                    name: edge.getLabels()?.[0]?.attrs?.label?.text || '',
+                    config: {
+                        type: 'sequence',
+                        condition: condition || undefined
+                    }
+                };
+            });
 
             // 构建保存数据
             const saveData = {
@@ -1172,36 +1172,56 @@ const WorkflowDesign: React.FC = () => {
                 graph: {
                     nodes,
                     edges
-                },
-                formVariablesSchema: mergedFormSchema
+                }
             };
 
             // 调用保存接口
             await saveDefinition(saveData);
 
-            // 使用 Modal.confirm 显示操作选择
-            Modal.confirm({
-                title: '保存成功',
-                content: '流程设计已保存成功，请选择下一步操作',
-                okText: '继续设计',
-                cancelText: '返回列表',
-                onOk: () => {
-                    // 重新加载设计数据
-                    if (id) {
-                        loadDefinitionDetail(graph, id);
-                    }
-                },
-                onCancel: () => {
-                    // 返回列表页
-                    navigate('/workflow/definition');
-                }
-            });
+            message.success('保存成功');
         } catch (error) {
             console.error('保存流程失败:', error);
             message.error('保存流程失败');
         }
     };
 
+    // 处理条件更新
+    const handleConditionUpdate = (condition: EdgeCondition) => {
+        if (!selectedEdge) return;
+
+        // 更新边的属性
+        selectedEdge.setProp('condition', condition);
+
+        // 更新边的标签显示
+        const labelText = condition.type === 'EXPRESSION' 
+            ? condition.expression 
+            : '默认路径';
+
+        selectedEdge.setLabels([{
+            attrs: {
+                label: {
+                    text: labelText,
+                    fill: '#333',
+                    fontSize: 12
+                },
+                rect: {
+                    fill: '#fff',
+                    stroke: '#ccc',
+                    rx: 3,
+                    ry: 3,
+                    padding: 5
+                }
+            },
+            position: {
+                distance: 0.5,
+                offset: 0
+            }
+        }]);
+
+        setExpressionModalVisible(false);
+        setSelectedEdge(null);
+    };
+
     return (
         <div className="workflow-design">
             <div className="header">
@@ -1375,6 +1395,17 @@ const WorkflowDesign: React.FC = () => {
                     onOk={handleNodeConfigUpdate}
                 />
             )}
+            {selectedEdge && (
+                <ExpressionModal
+                    visible={expressionModalVisible}
+                    edge={selectedEdge}
+                    onOk={handleConditionUpdate}
+                    onCancel={() => {
+                        setExpressionModalVisible(false);
+                        setSelectedEdge(null);
+                    }}
+                />
+            )}
         </div>
     );
 };