diff --git a/bonus-modules/bonus-smart-canteen/src/main/resources/mapper/alloc/AllocAreaMapper.xml b/bonus-modules/bonus-smart-canteen/src/main/resources/mapper/alloc/AllocAreaMapper.xml
index ed29103..b89dca7 100644
--- a/bonus-modules/bonus-smart-canteen/src/main/resources/mapper/alloc/AllocAreaMapper.xml
+++ b/bonus-modules/bonus-smart-canteen/src/main/resources/mapper/alloc/AllocAreaMapper.xml
@@ -99,13 +99,14 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
     </update>
 
     <delete id="deleteAllocAreaByAreaId" parameterType="Long">
-        delete from alloc_area where area_id = #{areaId}
+        delete from alloc_area where parent_id != 0 and area_id = #{areaId}
     </delete>
 
     <delete id="deleteAllocAreaByAreaIds" parameterType="String">
-        delete from alloc_area where area_id in
-        <foreach item="areaId" collection="array" open="(" separator="," close=")">
-            #{areaId}
-        </foreach>
+        delete from alloc_area
+        where parent_id != 0 and area_id in
+            <foreach item="areaId" collection="array" open="(" separator="," close=")">
+                #{areaId}
+            </foreach>
     </delete>
 </mapper>