diff --git a/visual/workflow/src/main/resources/mapper/UserInstanceMapper.xml b/visual/workflow/src/main/resources/mapper/UserInstanceMapper.xml
index a9cdaa5..c00e32d 100644
--- a/visual/workflow/src/main/resources/mapper/UserInstanceMapper.xml
+++ b/visual/workflow/src/main/resources/mapper/UserInstanceMapper.xml
@@ -41,7 +41,7 @@
     </select>
     <select id="selectProcessInstanceListByUserIdAndState"
             resultType="cn.fateverse.workflow.entity.UserInstance">
-        select process_instance_id,
+        select distinct process_instance_id,
         user_id,
         deployment_name,
         submit_time,