diff --git a/Src/Dlhis.Basic/BusinessShift/Services/Implements/BusinessPlaceShiftService.cs b/Src/Dlhis.Basic/BusinessShift/Services/Implements/BusinessPlaceShiftService.cs
index ed7a576d..92f5f95e 100644
--- a/Src/Dlhis.Basic/BusinessShift/Services/Implements/BusinessPlaceShiftService.cs
+++ b/Src/Dlhis.Basic/BusinessShift/Services/Implements/BusinessPlaceShiftService.cs
@@ -245,7 +245,7 @@ public class BusinessPlaceShiftService : IBusinessPlaceShiftService
         {
             foreach (var no in request.UniqueNos)
             {
-                var device = devices.Where(x => x.UniqueNo == no).First();
+                var device = devices.Where(x => x.UniqueNo == no).FirstOrDefault();
                 device.ThrowIfNull($"{no}:设备不存在");
             }
         }