diff --git a/adc-da-slrs/src/main/java/com/adc/da/slrs/sarInstitution/service/impl/TsInstitutionServiceImpl.java b/adc-da-slrs/src/main/java/com/adc/da/slrs/sarInstitution/service/impl/TsInstitutionServiceImpl.java
index 217f872f..1e660d8f 100644
--- a/adc-da-slrs/src/main/java/com/adc/da/slrs/sarInstitution/service/impl/TsInstitutionServiceImpl.java
+++ b/adc-da-slrs/src/main/java/com/adc/da/slrs/sarInstitution/service/impl/TsInstitutionServiceImpl.java
@@ -288,16 +288,18 @@ public class TsInstitutionServiceImpl extends ServiceImpl<TsInstitutionDao, TsIn
                 List<TsInstitution> tsInstitutions = new ArrayList<>();
                 List<TsInstitution> institutions = getTopChild(map,userVO.getInstitutionId(),topNum,tsInstitutions);
                 if(!institutions.isEmpty()){
-                    if(institutions.size() >= topNum){
+                    if(institutions.size() > topNum){
                         userVO.setTopUnitId(institutions.get(topNum).getId());
                         userVO.setTopUnit(institutions.get(topNum).getName());
+                    }else if(institutions.size() == topNum){
+                        userVO.setTopUnitId(institutions.get(topNum-1).getId());
+                        userVO.setTopUnit(institutions.get(topNum-1).getName());
                     }else {
-                        userVO.setTopUnitId(institutions.get(institutions.size()-1).getId());
-                        userVO.setTopUnit(institutions.get(institutions.size()-1).getName());
+                            userVO.setTopUnitId(institutions.get(institutions.size()-1).getId());
+                            userVO.setTopUnit(institutions.get(institutions.size()-1).getName());
                     }
                 }
             }
-
         }
         return res;
     }