diff --git a/epdc-cloud-vim-yushan/src/main/java/com/elink/esua/epdc/vaccine/epidemic/service/impl/EpidemicUserInfoServiceImpl.java b/epdc-cloud-vim-yushan/src/main/java/com/elink/esua/epdc/vaccine/epidemic/service/impl/EpidemicUserInfoServiceImpl.java
index 57bb5ee..202f4b3 100644
--- a/epdc-cloud-vim-yushan/src/main/java/com/elink/esua/epdc/vaccine/epidemic/service/impl/EpidemicUserInfoServiceImpl.java
+++ b/epdc-cloud-vim-yushan/src/main/java/com/elink/esua/epdc/vaccine/epidemic/service/impl/EpidemicUserInfoServiceImpl.java
@@ -1644,6 +1644,9 @@ public class EpidemicUserInfoServiceImpl extends CrudServiceImpl<EpidemicUserInf
     @Override
     public Result addFamilyMember(FamilyMemberInfoFormDTO formDTO) {
         // 获取房屋网格ID
+        if (formDTO.getUnitId() == null) {
+            return new Result().error("unitId不能为空");
+        }
         EpidemicBuildingUnitDetailResultDTO entity = epidemicBuildingUnitDao.selectDetailById(formDTO.getUnitId().toString());
         String gridId = entity.getGridId();
         // 查询父部门信息