diff --git a/adc-da-slrs/src/main/resources/mybatis/mapper/SarStandMenu/SarStandMenuMapper.xml b/adc-da-slrs/src/main/resources/mybatis/mapper/SarStandMenu/SarStandMenuMapper.xml
index b2622e2a..62eeccad 100644
--- a/adc-da-slrs/src/main/resources/mybatis/mapper/SarStandMenu/SarStandMenuMapper.xml
+++ b/adc-da-slrs/src/main/resources/mybatis/mapper/SarStandMenu/SarStandMenuMapper.xml
@@ -180,7 +180,10 @@
             CONCAT(gb.STAND_SORT, ' ', gb.STAND_NUMBER) AS standNo,
             gb.STAND_NAME AS standName,
             gb.STAND_STATE AS standState,
-            gb.ISSUE_TIME AS releaseDate,
+            CASE
+                WHEN gb.ISSUE_TIME = '' THEN NULL
+            ELSE gb.ISSUE_TIME
+                END AS releaseDate,
             gb.PUT_TIME AS implementDate,
             gb.REPLACE_STAND_NUM AS replaceStandardNo,
             gba.QCDW AS dept,