diff --git a/web-infrastructure/src/main/resources/mapper/study/StudentMapper.xml b/web-infrastructure/src/main/resources/mapper/study/StudentMapper.xml
index 625e71e..e167af2 100644
--- a/web-infrastructure/src/main/resources/mapper/study/StudentMapper.xml
+++ b/web-infrastructure/src/main/resources/mapper/study/StudentMapper.xml
@@ -222,7 +222,7 @@
             <if test="params.likeClassName != null and params.likeClassName != ''">
                 and c.name like concat('%',#{params.likeClassName},'%')
             </if>
-            <if test="params.state != null and params.state != ''">
+            <if test="params.state != null ">
                 <if test="params.state == 0">
                     and s.state = 0
                     and c.start_time > now()
@@ -235,6 +235,10 @@
                     and c.start_time &lt;= now()
                     and c.end_time &gt;= now()
                 </if>
+                <if test="params.state == 3">
+                    and s.state = 0
+                    and  c.end_time &lt;= now()
+                </if>
             </if>
         </where>
     </select>