diff --git a/src/main/resources/mybatis/mapper/basic/UdiRelevanceDao.xml b/src/main/resources/mybatis/mapper/basic/UdiRelevanceDao.xml
index 482789d11..bae8b373e 100644
--- a/src/main/resources/mybatis/mapper/basic/UdiRelevanceDao.xml
+++ b/src/main/resources/mybatis/mapper/basic/UdiRelevanceDao.xml
@@ -133,7 +133,7 @@
                 AND basic_products.nameCode = #{nameCode}
             </if>
         </where>
-
+        LIMIT 1
     </select>
 
     <select id="filterUdiJoinSup" parameterType="com.glxp.api.req.basic.FilterUdiRelRequest"