diff --git a/hxhq-modules/hxhq-system/src/main/java/com/hxhq/business/controller/StepController.java b/hxhq-modules/hxhq-system/src/main/java/com/hxhq/business/controller/StepController.java
index 46eafb6..f319675 100644
--- a/hxhq-modules/hxhq-system/src/main/java/com/hxhq/business/controller/StepController.java
+++ b/hxhq-modules/hxhq-system/src/main/java/com/hxhq/business/controller/StepController.java
@@ -3,6 +3,7 @@ package com.hxhq.business.controller;
 import java.util.Arrays;
 import java.util.List;
 
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.hxhq.common.security.annotation.Logical;
 import com.hxhq.common.security.annotation.RequiresPermissions;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -56,6 +57,14 @@ public class StepController extends BaseController
     @RequiresPermissions("business:step:list")
     public AjaxResult save(@RequestBody Step step)
     {
+        QueryWrapper<Step> queryWrapper = new QueryWrapper<>();
+        queryWrapper.eq("sn",step.getSn());
+        if(step.getId()!=null){
+            queryWrapper.ne("id",step.getId());
+        }
+        if(stepService.count(queryWrapper)>0){
+            return AjaxResult.error("编号已存在");
+        }
         return toAjax(stepService.saveOrUpdate(step));
     }