diff --git a/web-infrastructure/src/main/resources/mapper/KeyProjectCameraMapper.xml b/web-infrastructure/src/main/resources/mapper/KeyProjectCameraMapper.xml
index 299d241..d7bb47f 100644
--- a/web-infrastructure/src/main/resources/mapper/KeyProjectCameraMapper.xml
+++ b/web-infrastructure/src/main/resources/mapper/KeyProjectCameraMapper.xml
@@ -78,7 +78,7 @@
             c.video_name cameraName,
             c.is_online,
             kpai.algorithm_id,
-            group_concat(a.name) as algorithmType
+            group_concat(DISTINCT a.name) as algorithmType
         FROM key_project_camera lpc
             LEFT JOIN camera c ON lpc.camera_id = c.camera_id
             left join key_project_algorithm_item kpai on kpai.key_project_camera_id = lpc.key_project_camera_id and kpai.delete_enum='false'