diff --git a/web/src/main/java/com/ibeetl/jlw/entity/TeacherOpenCourseStudentSigninSetting.java b/web/src/main/java/com/ibeetl/jlw/entity/TeacherOpenCourseStudentSigninSetting.java
index 3e7d76ed..ce6687b8 100644
--- a/web/src/main/java/com/ibeetl/jlw/entity/TeacherOpenCourseStudentSigninSetting.java
+++ b/web/src/main/java/com/ibeetl/jlw/entity/TeacherOpenCourseStudentSigninSetting.java
@@ -149,7 +149,7 @@ public class TeacherOpenCourseStudentSigninSetting extends BaseEntity{
 
     // 缺勤 schoolClassIds
 
-    @FetchSql("select if((#signinStudentTotalCount# - #signinTotalCount#) < 0, 0, (#signinStudentTotalCount# - #signinTotalCount#))")
+    @FetchSql("select case when #teacherOpenCourseStudentSigninSettingStartStatus# = 'READY' then 0 else if((#signinStudentTotalCount# - #signinTotalCount#) < 0, 0, (#signinStudentTotalCount# - #signinTotalCount#)) end")
     @UpdateIgnore
     @InsertIgnore
     private Integer unsigninCount;