diff --git a/src/Shentun.WebPeis.Application/MedicalPackages/MedicalPackageAppservice.cs b/src/Shentun.WebPeis.Application/MedicalPackages/MedicalPackageAppservice.cs
index cded1d3..b70c7a3 100644
--- a/src/Shentun.WebPeis.Application/MedicalPackages/MedicalPackageAppservice.cs
+++ b/src/Shentun.WebPeis.Application/MedicalPackages/MedicalPackageAppservice.cs
@@ -143,7 +143,11 @@ namespace Shentun.WebPeis.MedicalPackages
             {
                 throw new UserFriendlyException("没有设置基础套餐");
             }
-            var medicalPackage = medicalPackages.OrderBy(o => o.DisplayOrder).Single();
+            var medicalPackage = medicalPackages.OrderBy(o => o.DisplayOrder).FirstOrDefault();
+            if(medicalPackage == null)
+            {
+                throw new UserFriendlyException("没有设置对应的基础推荐套餐");
+            }
             var result = ObjectMapper.Map<MedicalPackage, MedicalPackageDto>(medicalPackage); ;
             result.ForSexName = await _cacheService.GetForSexNameAsync(result.ForSexId);
             result.MaritalStatusName = await _cacheService.GetForSexNameAsync(result.MaritalStatusId);