diff --git a/pjcloud-hardware/pjcloud-hardware-biz/src/main/java/com/bsd/pjcloud/hard/controller/HardApptController.java b/pjcloud-hardware/pjcloud-hardware-biz/src/main/java/com/bsd/pjcloud/hard/controller/HardApptController.java
index 18a5a5c5..61b8807d 100644
--- a/pjcloud-hardware/pjcloud-hardware-biz/src/main/java/com/bsd/pjcloud/hard/controller/HardApptController.java
+++ b/pjcloud-hardware/pjcloud-hardware-biz/src/main/java/com/bsd/pjcloud/hard/controller/HardApptController.java
@@ -49,6 +49,9 @@ public class HardApptController {
     @ApiCryptoAes
     @GetMapping("/app/list")
     public R<List<HardApptEntity>> appList(@ParameterObject HardApptDto dto) {
+        if (ObjectUtil.isEmpty(dto.getMchId())) {
+            return R.ok(List.of());
+        }
         return R.ok(hardApptReservationService.listLegacyFlatOptions(dto.getMchId()));
     }