diff --git a/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/PostgreSQLProvider.cs b/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/PostgreSQLProvider.cs
index f8071b167..c6e2848b5 100644
--- a/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/PostgreSQLProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/PostgreSQL/PostgreSQLProvider.cs
@@ -115,6 +115,19 @@ namespace SqlSugar
                     }
                     else if (type==DBNull.Value.GetType()) 
                     {
+                        if (parameter.DbType.IsIn(System.Data.DbType.Int32))
+                        {
+                            sqlParameter.NpgsqlDbType = NpgsqlDbType.Integer | NpgsqlDbType.Array;
+                        }
+                        else if (parameter.DbType.IsIn(System.Data.DbType.Int64))
+                        {
+                            sqlParameter.NpgsqlDbType = NpgsqlDbType.Bigint | NpgsqlDbType.Array;
+                        }
+                        else 
+                        {
+                            sqlParameter.NpgsqlDbType =NpgsqlDbType.Text | NpgsqlDbType.Array;
+                        }
+
                     }
                     else
                     {