diff --git a/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/PostgreSQLProvider.cs b/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/PostgreSQLProvider.cs
index 7fbe308de..08fa743ce 100644
--- a/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/PostgreSQLProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/PostgreSQLProvider.cs
@@ -12,7 +12,14 @@ namespace SqlSugar
 {
     public partial class PostgreSQLProvider : AdoProvider
     {
-        public PostgreSQLProvider() { }
+        public PostgreSQLProvider() 
+        {
+            if (SugarCompatible.IsFramework == false)
+            {
+                AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true);
+                AppContext.SetSwitch("Npgsql.DisableDateTimeInfinityConversions", true);
+            }
+        }
         public override IDbConnection Connection
         {
             get