diff --git a/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanMapper.xml b/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanMapper.xml
index 04b38d8783..5a50ccdad7 100644
--- a/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanMapper.xml
+++ b/backend/src/main/java/io/metersphere/base/mapper/ext/ExtTestPlanMapper.xml
@@ -98,7 +98,7 @@
 
     <select id="list" resultMap="BaseResultMap"
             parameterType="io.metersphere.track.request.testcase.QueryTestPlanRequest">
-        select test_plan.*, user.name as user_name from test_plan
+        select DISTINCT test_plan.*, user.name as user_name from test_plan
         LEFT JOIN user ON user.id = test_plan.principal
         JOIN test_plan_project on test_plan.id = test_plan_id JOIN project on project.id = project_id
         <where>