diff --git a/adc-da-slrs/src/main/resources/mybatis/mapper/sarStandProjectLibrary/SarStandProjectLibraryMapper.xml b/adc-da-slrs/src/main/resources/mybatis/mapper/sarStandProjectLibrary/SarStandProjectLibraryMapper.xml
index d385bc1a..49f537ee 100644
--- a/adc-da-slrs/src/main/resources/mybatis/mapper/sarStandProjectLibrary/SarStandProjectLibraryMapper.xml
+++ b/adc-da-slrs/src/main/resources/mybatis/mapper/sarStandProjectLibrary/SarStandProjectLibraryMapper.xml
@@ -61,10 +61,10 @@
         WHERE
 
         <if test="flag == 1">
-            library.id NOT IN ( SELECT project_id FROM sar_stand_project_relation )
+            library.id NOT IN ( SELECT DISTINCT project_id FROM sar_stand_project_relation WHERE project_id is NOT NULL )
         </if>
         <if test="flag == 2">
-            library.id IN ( SELECT project_id FROM sar_stand_project_relation )
+            library.id IN ( SELECT DISTINCT project_id FROM sar_stand_project_relation WHERE project_id is NOT NULL )
         </if>
         <if test="flag == 4">
             1=1
@@ -185,10 +185,10 @@
         ON team.project_code = library.project_number
         WHERE
         <if test="flag == 1">
-            library.id NOT IN ( SELECT project_id FROM sar_stand_project_relation )
+            library.id NOT IN ( SELECT DISTINCT project_id FROM sar_stand_project_relation WHERE project_id is NOT NULL )
         </if>
         <if test="flag == 2">
-            library.id IN ( SELECT project_id FROM sar_stand_project_relation )
+            library.id IN ( SELECT DISTINCT project_id FROM sar_stand_project_relation WHERE project_id is NOT NULL )
         </if>
         <if test="flag == 4">
             1=1