diff --git a/src/main/java/com/yunhai/bschclassmanage/service/ISendUserBaseService.java b/src/main/java/com/yunhai/bschclassmanage/service/ISendUserBaseService.java
index 02fc6bf..d5d8380 100644
--- a/src/main/java/com/yunhai/bschclassmanage/service/ISendUserBaseService.java
+++ b/src/main/java/com/yunhai/bschclassmanage/service/ISendUserBaseService.java
@@ -20,6 +20,8 @@ public interface ISendUserBaseService {
 
     void editGroup(Integer id,String name,Integer parentId,Integer sort, NodeType type,Integer schId);
 
+    void deleteGroup(Integer id,Integer schId);
+
     BoaUser addTeacher(SchTeacher teacher, String pwd, Integer groupId);
 
     BoaUser editTeacher(SchTeacher teacher,String pwd, Integer groupId);
diff --git a/src/main/java/com/yunhai/bschclassmanage/service/impl/classes/SchClassInfoService.java b/src/main/java/com/yunhai/bschclassmanage/service/impl/classes/SchClassInfoService.java
index e423b64..2290014 100644
--- a/src/main/java/com/yunhai/bschclassmanage/service/impl/classes/SchClassInfoService.java
+++ b/src/main/java/com/yunhai/bschclassmanage/service/impl/classes/SchClassInfoService.java
@@ -95,7 +95,7 @@ public class SchClassInfoService {
 
         //获取年级组
         List<SelectIntVO> gradeGroupList = comSchTreeService.getSchGroupTypeList(schId, NodeType.GRADE.getId()).get(schsystemId);
-        if (gradeGroupList != null) {
+        if (gradeGroupList == null) {
             BoaGroup academicGroup=  sendUserBaseService.addGroup(year.toString(),parentId,year,NodeType.GRADE,schId);
             parentId=academicGroup.getId();
         }else {
@@ -220,7 +220,7 @@ public class SchClassInfoService {
         // if (count > 0) throw new DException("班级下还有学生");
         schClassRepository.deleteById(id);
         cacheService.clearClassCache(schId);
-
+        sendUserBaseService.deleteGroup(id, schId);
         String content = logService.buildDeleteClassLog(schId, schClass);
         LogContextHolder.setDescription(content);
     }