diff --git a/Src/Dlhis.Basic/Device/Services/Implements/DeviceService.cs b/Src/Dlhis.Basic/Device/Services/Implements/DeviceService.cs
index 6605c545..7e823caf 100644
--- a/Src/Dlhis.Basic/Device/Services/Implements/DeviceService.cs
+++ b/Src/Dlhis.Basic/Device/Services/Implements/DeviceService.cs
@@ -14,6 +14,7 @@ using Kurisu.AspNetCore.Utils.Extensions;
 using Mapster;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
+using SqlSugar;
 
 namespace Dlhis.Basic.Device.Services.Implements;
 
@@ -41,7 +42,7 @@ public class DeviceService : IDeviceService
             .Where((d, dt) => d.Type == request.Type)
             .WhereIF(request.Enable.HasValue, (d, dt) => d.Enable == request.Enable)
             .WhereIF(request.Search.IsPresent(), d => d.UniqueNo == request.Search || d.DeployPlace.Contains(request.Search))
-            .WhereIF(request.Supplier.IsPresent(), d => d.Supplier.Contains(request.Search))
+            .WhereIF(request.Supplier.IsPresent(), d => !SqlFunc.IsNullOrEmpty(request.Search) && d.Supplier.Contains(request.Supplier))
             .Select((d, dt, dr, bp) => new DevicePageResponse
             {
                 FuncsStr = d.Funcs.ToString(),