diff --git a/sgzb-modules/sgzb-material/src/main/resources/mapper/largeScreen/LargeScreenMapper.xml b/sgzb-modules/sgzb-material/src/main/resources/mapper/largeScreen/LargeScreenMapper.xml
index c11867a..2663335 100644
--- a/sgzb-modules/sgzb-material/src/main/resources/mapper/largeScreen/LargeScreenMapper.xml
+++ b/sgzb-modules/sgzb-material/src/main/resources/mapper/largeScreen/LargeScreenMapper.xml
@@ -238,10 +238,10 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
                 </if>
             </where>
         UNION ALL
-            SELECT bad.audit_num AS num,
+            SELECT bad.back_num AS num,
                     '2' AS type,
                     mt.type_name AS typeName
-            FROM back_apply_details bad
+            FROM back_check_details bad
             LEFT JOIN ma_type mt ON bad.type_id = mt.type_id AND mt.`level` = '4'
             LEFT JOIN sys_dept sd ON sd.dept_id = mt.company_id
             <where>