diff --git a/app/common/service/StudentHomeworkService.php b/app/common/service/StudentHomeworkService.php
index f4d4a46..84b5de7 100644
--- a/app/common/service/StudentHomeworkService.php
+++ b/app/common/service/StudentHomeworkService.php
@@ -161,8 +161,8 @@ class StudentHomeworkService
 
 
             } else {
-                $model = StudentSchedule::order('id desc')->alias('ss')
-                    ->leftJoin('student_homework sh', 'ss.subject_homework_id = su.id')
+                $model = StudentSchedule::order('ss.id desc')->alias('ss')
+                    ->leftJoin('student_homework sh', 'ss.teacher_schedule_time_id = sh.teacher_schedule_time_id')
                     ->where(['ss.student_id' => $student->id]);
                 $total = $model->count();
                 $list = $model->with(['student', 'subject', 'teacher'])