diff --git a/src/App.tsx b/src/App.tsx
index 217c7b7..53971b0 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -713,24 +713,30 @@ export default function App() {
       const tempStepsMap = new Map<string, StepItem>();
 
       // 首先处理每个步骤的基本信息
-      for (const config of filteredConfigs) {
-        const stepName = config.processName;
-        const order = config.order;
-        
-        // 如果该步骤不存在，创建新步骤
-        if (!tempStepsMap.has(stepName)) {
-          tempStepsMap.set(stepName, {
-            name: stepName,
-            fieldId: stepName,
-            finished: false,
-            order,
-            parallelSteps: undefined,
-            requireAllSubSteps: true, // 默认需要所有子步骤完成
-            isMainStep: order === Math.floor(order) // 标记是否为主步骤
-          });
-        }
-        
-        const stepItem = tempStepsMap.get(stepName)!;
+        for (const config of filteredConfigs) {
+          const stepName = config.processName;
+          const order = config.order;
+          
+          // 如果该步骤不存在，创建新步骤
+          if (!tempStepsMap.has(stepName)) {
+            tempStepsMap.set(stepName, {
+              name: stepName,
+              fieldId: stepName,
+              finished: false,
+              order,
+              parallelSteps: undefined,
+              requireAllSubSteps: true, // 默认需要所有子步骤完成
+              isMainStep: order === Math.floor(order) // 标记是否为主步骤
+            });
+          } else {
+            // 如果步骤已存在，使用最小的order值
+            const existingStep = tempStepsMap.get(stepName)!;
+            existingStep.order = Math.min(existingStep.order || 0, order);
+            // 重新计算是否为主步骤
+            existingStep.isMainStep = existingStep.order === Math.floor(existingStep.order);
+          }
+          
+          const stepItem = tempStepsMap.get(stepName)!;
         
         // 根据节点类型设置相应的时间字段
         if (config.timeFieldId) {