diff --git a/public/react/src/modules/courses/busyWork/CommonWorkList.js b/public/react/src/modules/courses/busyWork/CommonWorkList.js
index dcc33056f..10f98a4ab 100644
--- a/public/react/src/modules/courses/busyWork/CommonWorkList.js
+++ b/public/react/src/modules/courses/busyWork/CommonWorkList.js
@@ -51,7 +51,7 @@ function buildColumns(that, student_works) {
   const isAdmin = that.props.isAdmin()
   const isAdminOrStudent = that.props.isAdminOrStudent()
   const isStudent = that.props.isStudent()
-  const isNiPing = homework_status.indexOf('匿评中') != -1
+  const isNiPing = homework_status && homework_status.indexOf('匿评中') != -1
   // https://www.trustie.net/issues/21450   分组作业作品列表 学时视角，匿评阶段的列表显示信息不正确
   const niPingAndIsStudent = isStudent && isNiPing