diff --git a/src/main/resources/mapper/app/ResultRecordMapper.xml b/src/main/resources/mapper/app/ResultRecordMapper.xml
index 2278dfc5..a232debd 100644
--- a/src/main/resources/mapper/app/ResultRecordMapper.xml
+++ b/src/main/resources/mapper/app/ResultRecordMapper.xml
@@ -412,7 +412,12 @@
             )
         </if>
         <if test="scoreLevel !=null">
-            and r.score_level = #{scoreLevel}
+            <if test="scoreLevel == ''">
+                and r.score_level is null
+            </if>
+            <if test="scoreLevel != ''">
+                and r.score_level = #{scoreLevel}
+            </if>
         </if>
         ORDER BY all_score desc
     </select>