diff --git a/Admin.NET/Admin.NET.Core/Service/CodeGen/SysCodeGenService.cs b/Admin.NET/Admin.NET.Core/Service/CodeGen/SysCodeGenService.cs
index c2d10a39c15fb1c1b6359f976c13b4628458a623..40917cea26211171dc42ce95e411814bb15877f6 100644
--- a/Admin.NET/Admin.NET.Core/Service/CodeGen/SysCodeGenService.cs
+++ b/Admin.NET/Admin.NET.Core/Service/CodeGen/SysCodeGenService.cs
@@ -233,7 +233,8 @@ public class SysCodeGenService : IDynamicApiController, ITransient
         }).ToList();
         foreach (var column in columnList)
         {
-            var property = properties.FirstOrDefault(e => (config!.DbSettings.EnableUnderLine ? e.ColumnName.ToUnderLine() : e.ColumnName) == column.ColumnName);
+            // ToLowerInvariant 将字段名转成小写再比较，避免因大小写不一致导致无法匹配(pgsql创建表会默认全小写,而我们的实体中又是大写,就会匹配不上)
+            var property = properties.FirstOrDefault(e => (config!.DbSettings.EnableUnderLine ? e.ColumnName.ToUnderLine() : e.ColumnName).ToLowerInvariant() == column.ColumnName.ToLowerInvariant());
             column.ColumnComment ??= property?.ColumnComment;
             column.PropertyName = property?.PropertyName;
         }