diff --git a/src/main/java/net/mingsoft/cms/dao/ICategoryDao.xml b/src/main/java/net/mingsoft/cms/dao/ICategoryDao.xml
index a5bc84f3..3763ba70 100644
--- a/src/main/java/net/mingsoft/cms/dao/ICategoryDao.xml
+++ b/src/main/java/net/mingsoft/cms/dao/ICategoryDao.xml
@@ -174,7 +174,7 @@
 			and
 			(
 			<if test="categoryParentId != null and categoryParentId!=''">
-				CATEGORY_PARENT_ID like '%${categoryParentId}%'
+				find_in_set(#{categoryParentId},CATEGORY_PARENT_ID)
 			</if>
 			<if test="categoryParentId == null or  categoryParentId ==''">
 				<include refid="queryWhereCategoryId"></include>
@@ -237,4 +237,4 @@
 		order by id desc
 	</select>
 
-</mapper>
\ No newline at end of file
+</mapper>