diff --git a/jshERP-boot/src/main/java/com/jsh/erp/datasource/mappers/UnitMapperEx.java b/jshERP-boot/src/main/java/com/jsh/erp/datasource/mappers/UnitMapperEx.java
index 960cc3f9..2b5ffe63 100644
--- a/jshERP-boot/src/main/java/com/jsh/erp/datasource/mappers/UnitMapperEx.java
+++ b/jshERP-boot/src/main/java/com/jsh/erp/datasource/mappers/UnitMapperEx.java
@@ -18,4 +18,8 @@ public interface UnitMapperEx {
             @Param("name") String name);
 
     int batchDeleteUnitByIds(@Param("updateTime") Date updateTime, @Param("updater") Long updater, @Param("ids") String ids[]);
+
+    void updateRatioTwoById(@Param("id") Long id);
+
+    void updateRatioThreeById(@Param("id") Long id);
 }
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diff --git a/jshERP-boot/src/main/java/com/jsh/erp/service/unit/UnitService.java b/jshERP-boot/src/main/java/com/jsh/erp/service/unit/UnitService.java
index 1682b9a6..56236d8b 100644
--- a/jshERP-boot/src/main/java/com/jsh/erp/service/unit/UnitService.java
+++ b/jshERP-boot/src/main/java/com/jsh/erp/service/unit/UnitService.java
@@ -120,6 +120,12 @@ public class UnitService {
         try{
             parseNameByUnit(unit);
             result=unitMapper.updateByPrimaryKeySelective(unit);
+            if(unit.getRatioTwo()==null) {
+                unitMapperEx.updateRatioTwoById(unit.getId());
+            }
+            if(unit.getRatioThree()==null) {
+                unitMapperEx.updateRatioThreeById(unit.getId());
+            }
             logService.insertLog("计量单位",
                     new StringBuffer(BusinessConstants.LOG_OPERATION_TYPE_EDIT).append(unit.getName()).toString(), request);
         }catch(Exception e){
diff --git a/jshERP-boot/src/main/resources/mapper_xml/UnitMapperEx.xml b/jshERP-boot/src/main/resources/mapper_xml/UnitMapperEx.xml
index 05e9a557..fe29f3a8 100644
--- a/jshERP-boot/src/main/resources/mapper_xml/UnitMapperEx.xml
+++ b/jshERP-boot/src/main/resources/mapper_xml/UnitMapperEx.xml
@@ -35,4 +35,14 @@
         </foreach>
         )
     </update>
+    <update id="updateRatioTwoById">
+        update jsh_unit
+        set ratio_two=null
+        where id=#{id}
+    </update>
+    <update id="updateRatioThreeById">
+        update jsh_unit
+        set ratio_three=null
+        where id=#{id}
+    </update>
 </mapper>
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