diff --git a/hxhq-modules/hxhq-system/src/main/resources/mapper/business/StudyFormFillMapper.xml b/hxhq-modules/hxhq-system/src/main/resources/mapper/business/StudyFormFillMapper.xml
index 8566ad2..dd21de5 100644
--- a/hxhq-modules/hxhq-system/src/main/resources/mapper/business/StudyFormFillMapper.xml
+++ b/hxhq-modules/hxhq-system/src/main/resources/mapper/business/StudyFormFillMapper.xml
@@ -8,7 +8,7 @@
         ,ss.leader as subjectLeader,t.sfbl,tm.show_gc
         FROM `t_study_form_fill` t
         join t_template tm on tm.id=t.template_id
-        join t_study_subject ss on t.study_subject_id=ss.id
+        left join t_study_subject ss on t.study_subject_id=ss.id
         <if test="ew.sqlSegment != '' and ew.sqlSegment != null">
             <where>
                 ${ew.sqlSegment}