diff --git a/laws-modules/src/main/java/com/jero/modules/activiti/process/esChange/service/impl/ProcessEsChangeServiceImpl.java b/laws-modules/src/main/java/com/jero/modules/activiti/process/esChange/service/impl/ProcessEsChangeServiceImpl.java
index 9c361186..5f17cda5 100644
--- a/laws-modules/src/main/java/com/jero/modules/activiti/process/esChange/service/impl/ProcessEsChangeServiceImpl.java
+++ b/laws-modules/src/main/java/com/jero/modules/activiti/process/esChange/service/impl/ProcessEsChangeServiceImpl.java
@@ -7,6 +7,7 @@ import com.jero.common.api.vo.ResultCommon;
 import com.jero.common.aspect.TranslationAspect;
 import com.jero.common.constant.enums.YesOrNoEnum;
 import com.jero.common.exception.JeroBootException;
+import com.jero.common.system.vo.DictModel;
 import com.jero.modules.activiti.entity.ProcessAll;
 import com.jero.modules.activiti.enums.ProcessStatusEnum;
 import com.jero.modules.activiti.enums.ProcessTypeEnum;
@@ -34,6 +35,9 @@ import com.jero.modules.laws.standard.service.ILawsEnterpriseStandardService;
 import com.jero.modules.onlyoffice.service.IBusProcessModelHisService;
 import com.jero.modules.oss.entity.OSSFile;
 import com.jero.modules.sys.utils.UserUtils;
+import com.jero.modules.system.entity.SysDepart;
+import com.jero.modules.system.service.ISysDepartService;
+import com.jero.modules.system.service.ISysDictService;
 import com.jero.modules.system.service.ISysUserDepartService;
 import lombok.extern.slf4j.Slf4j;
 import org.activiti.engine.RuntimeService;
@@ -88,6 +92,13 @@ public class ProcessEsChangeServiceImpl extends ServiceImpl<ProcessEsChangeMappe
     @Resource
     private IBusProcessModelHisService busProcessModelHisService;
 
+    @Resource
+    private ISysDepartService sysDepartService;
+
+    @Resource
+    private ISysDictService dictService;
+
+
     @Override
     public void startProcess(ESChangeDataVO changeData) {
         // 执行流程发起前的操作
@@ -199,6 +210,31 @@ public class ProcessEsChangeServiceImpl extends ServiceImpl<ProcessEsChangeMappe
         ProcessEsChange data = changeData.getData();
         if (data != null) {
             actFlowCommonService.checkStandardState(data.getStandardId());
+            // 判断主起草部门是否有对应的修改单代码
+            if (StrUtil.isBlank(data.getMainDraftingUnit())) {
+                throw new JeroBootException("主起草单位不能为空");
+            }
+            this.validDepartCode(changeData.getData().getMainDraftingUnit());
+        }
+    }
+
+
+    public void validDepartCode(String deptId) {
+        String deptCode = "";
+        // 找到单位代号
+        SysDepart dept = sysDepartService.getById(deptId);
+        if (dept != null) {
+            String deptName = dept.getDepartName();
+            List<DictModel> dictItems = dictService.queryEnableDictItemsByCode("es_modify_order_dept_code");
+            for (DictModel dictItem : dictItems) {
+                if (dictItem.getText().equals(deptName)) {
+                    deptCode = dictItem.getValue();
+                    break;
+                }
+            }
+        }
+        if (StrUtil.isBlank(deptCode)) {
+            throw new JeroBootException("发起失败，找不到主起草单位对应的单位代号，请前往数据字典中添加后再试");
         }
     }