diff --git a/Src/Asp.Net/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs
index b7fe77a85..e72d5ec3c 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs
@@ -160,7 +160,7 @@ namespace SqlSugar
                         {
                             andString.AppendFormat("\"{0}\"={1} ", primaryField.ToLower(), new PostgreSQLExpressionContext().GetValue(entityValue));
                         }
-                        else if (entityValue != null && UtilMethods.GetUnderType(entityValue.GetType()) == UtilConstants.DateType) 
+                        else if (this.Context.CurrentConnectionConfig.DbType == DbType.SqlServer && entityValue != null && UtilMethods.GetUnderType(entityValue.GetType()) == UtilConstants.DateType) 
                         {
                             andString.AppendFormat("\"{0}\"={1} ", primaryField,$"'{entityValue.ObjToDate().ToString("yyyy-MM-dd HH:mm:ss.fff")}'");
                         }