diff --git a/src/main/resources/mapper/SourceMapper.xml b/src/main/resources/mapper/SourceMapper.xml
index 45a5ab3..e024d49 100644
--- a/src/main/resources/mapper/SourceMapper.xml
+++ b/src/main/resources/mapper/SourceMapper.xml
@@ -60,7 +60,7 @@
         where member_id = #{userId} and face_id = #{faceId} and is_buy = 0
     </delete>
     <delete id="deleteUselessSource">
-        delete from source where id not in (select source_id from member_source where source_id is not null)
+        delete from source where id not in (select source_id from member_source) and face_sample_id not in (select id from face_sample)
     </delete>
 
     <select id="list" resultType="com.ycwl.basic.model.pc.source.resp.SourceRespVO">