diff --git a/adc-da-slrs/src/main/resources/mybatis/mapper/sarStandardsInfo/SarStandardsInfoMapper.xml b/adc-da-slrs/src/main/resources/mybatis/mapper/sarStandardsInfo/SarStandardsInfoMapper.xml
index 565b499b..d8c46134 100644
--- a/adc-da-slrs/src/main/resources/mybatis/mapper/sarStandardsInfo/SarStandardsInfoMapper.xml
+++ b/adc-da-slrs/src/main/resources/mybatis/mapper/sarStandardsInfo/SarStandardsInfoMapper.xml
@@ -79,19 +79,19 @@
         dicstandTextStatus.DIC_TYPE_NAME AS standTextStatusShow,
         (
         CASE
-        WHEN SAR_STAND_ATTR_INFO.SSRQ ='' THEN '9999-01-01'
+        WHEN SAR_STAND_ATTR_INFO.SSRQ ='' THEN ''
         ELSE SAR_STAND_ATTR_INFO.SSRQ
         END
         ) AS SSRQ,
         (
         CASE
-        WHEN SAR_STAND_ATTR_INFO.ZCCSSRQ ='' THEN '9999-01-01'
+        WHEN SAR_STAND_ATTR_INFO.ZCCSSRQ ='' THEN ''
         ELSE SAR_STAND_ATTR_INFO.ZCCSSRQ
         END
         ) AS ZCCSSRQ,
         (
         CASE
-        WHEN SAR_STAND_ATTR_INFO.XCXSSRQ ='' THEN '9999-01-01'
+        WHEN SAR_STAND_ATTR_INFO.XCXSSRQ ='' THEN ''
         ELSE SAR_STAND_ATTR_INFO.XCXSSRQ
         END
         ) AS XCXSSRQ