diff --git a/Src/Asp.Net/SqlSugar/Realization/SqlServer/DbBind/SqlServerDbBind.cs b/Src/Asp.Net/SqlSugar/Realization/SqlServer/DbBind/SqlServerDbBind.cs
index 4fe392862..cf926acf1 100644
--- a/Src/Asp.Net/SqlSugar/Realization/SqlServer/DbBind/SqlServerDbBind.cs
+++ b/Src/Asp.Net/SqlSugar/Realization/SqlServer/DbBind/SqlServerDbBind.cs
@@ -26,7 +26,7 @@ namespace SqlSugar
                   new KeyValuePair<string, CSharpDataType>("datetime",CSharpDataType.DateTime),
                   new KeyValuePair<string, CSharpDataType>("time",CSharpDataType.DateTime),
                   new KeyValuePair<string, CSharpDataType>("smalldatetime",CSharpDataType.DateTime),
-                  new KeyValuePair<string, CSharpDataType>("timestamp",CSharpDataType.DateTime),
+                  new KeyValuePair<string, CSharpDataType>("timestamp",CSharpDataType.byteArray),
                   new KeyValuePair<string, CSharpDataType>("datetime2",CSharpDataType.DateTime),
                   new KeyValuePair<string, CSharpDataType>("date",CSharpDataType.DateTime),
                   new KeyValuePair<string, CSharpDataType>("decimal",CSharpDataType.@decimal),