diff --git a/Admin.NET/Admin.NET.Core/Service/Region/SysRegionService.cs b/Admin.NET/Admin.NET.Core/Service/Region/SysRegionService.cs
index e1a19741..02cc7e8d 100644
--- a/Admin.NET/Admin.NET.Core/Service/Region/SysRegionService.cs
+++ b/Admin.NET/Admin.NET.Core/Service/Region/SysRegionService.cs
@@ -297,63 +297,69 @@ public class SysRegionService : IDynamicApiController, ITransient
                 Level = regionLevel0.Level,
             });
         }
-        foreach (var regionLevel1 in regionLevel0.Children)
+        if (regionLevel0.Children != null)
         {
-            var region1 = new SysRegion
+            foreach (var regionLevel1 in regionLevel0.Children)
             {
-                Id = Convert.ToInt64(regionLevel1.Code),
-                Pid = Convert.ToInt64(regionLevel0.Code),
-                Code = regionLevel1.Code,
-                Name = regionLevel1.Name,
-                Type = regionLevel1.Type,
-                Level = regionLevel1.Level,
-            };
-            if (areaList.Any(u => u.Id == region1.Id))
-                Console.WriteLine($"1 级：{region1.Id} - {region1.Name} 已存在");
-            else
-                areaList.Add(region1);
-            foreach (var regionLevel2 in regionLevel1.Children)
-            {
-                var region2 = new SysRegion
+                var region1 = new SysRegion
                 {
-                    Id = Convert.ToInt64(regionLevel2.Code),
-                    Pid = Convert.ToInt64(regionLevel1.Code),
-                    Code = regionLevel2.Code,
-                    Name = regionLevel2.Name,
-                    Type = regionLevel2.Type,
-                    Level = regionLevel2.Level,
+                    Id = Convert.ToInt64(regionLevel1.Code),
+                    Pid = Convert.ToInt64(regionLevel0.Code),
+                    Code = regionLevel1.Code,
+                    Name = regionLevel1.Name,
+                    Type = regionLevel1.Type,
+                    Level = regionLevel1.Level,
                 };
-                if (areaList.Any(u => u.Id == region2.Id))
-                    Console.WriteLine($"2 级：{region2.Id} - {region2.Name} 已存在");
+                if (areaList.Any(u => u.Id == region1.Id))
+                    Console.WriteLine($"1 级：{region1.Id} - {region1.Name} 已存在");
                 else
-                    areaList.Add(region2);
-                foreach (var regionLevel3 in regionLevel2.Children)
+                    areaList.Add(region1);
+                if (regionLevel1.Children == null) continue;
+                foreach (var regionLevel2 in regionLevel1.Children)
                 {
-                    var region3 = new SysRegion
+                    var region2 = new SysRegion
                     {
-                        Id = Convert.ToInt64(regionLevel3.Code),
-                        Pid = Convert.ToInt64(regionLevel2.Code),
-                        Code = regionLevel3.Code,
-                        Name = regionLevel3.Name,
-                        Type = regionLevel3.Type,
-                        Level = regionLevel3.Level,
+                        Id = Convert.ToInt64(regionLevel2.Code),
+                        Pid = Convert.ToInt64(regionLevel1.Code),
+                        Code = regionLevel2.Code,
+                        Name = regionLevel2.Name,
+                        Type = regionLevel2.Type,
+                        Level = regionLevel2.Level,
                     };
-                    if (areaList.Any(u => u.Id == region3.Id))
-                        Console.WriteLine($"3 级：{region3.Id} - {region3.Name}");
+                    if (areaList.Any(u => u.Id == region2.Id))
+                        Console.WriteLine($"2 级：{region2.Id} - {region2.Name} 已存在");
                     else
-                        areaList.Add(region3);
-                    foreach (var regionLevel4 in regionLevel3.Children)
+                        areaList.Add(region2);
+                    if (regionLevel2.Children == null) continue;
+                    foreach (var regionLevel3 in regionLevel2.Children)
                     {
-                        var region4 = new SysRegion
+                        var region3 = new SysRegion
                         {
-                            Id = Convert.ToInt64(regionLevel4.Code),
-                            Pid = Convert.ToInt64(regionLevel3.Code),
-                            Code = regionLevel4.Code,
-                            Name = regionLevel4.Name,
-                            Type = regionLevel4.Type,
-                            Level = regionLevel4.Level,
+                            Id = Convert.ToInt64(regionLevel3.Code),
+                            Pid = Convert.ToInt64(regionLevel2.Code),
+                            Code = regionLevel3.Code,
+                            Name = regionLevel3.Name,
+                            Type = regionLevel3.Type,
+                            Level = regionLevel3.Level,
                         };
-                        areaList.Add(region4);
+                        if (areaList.Any(u => u.Id == region3.Id))
+                            Console.WriteLine($"3 级：{region3.Id} - {region3.Name}");
+                        else
+                            areaList.Add(region3);
+                        if (regionLevel3.Children == null) continue;
+                        foreach (var regionLevel4 in regionLevel3.Children)
+                        {
+                            var region4 = new SysRegion
+                            {
+                                Id = Convert.ToInt64(regionLevel4.Code),
+                                Pid = Convert.ToInt64(regionLevel3.Code),
+                                Code = regionLevel4.Code,
+                                Name = regionLevel4.Name,
+                                Type = regionLevel4.Type,
+                                Level = regionLevel4.Level,
+                            };
+                            areaList.Add(region4);
+                        }
                     }
                 }
             }