diff --git a/Sanchime.Functional/Extensions/Exceptional.cs b/Sanchime.Functional/Extensions/Exceptional.cs
new file mode 100644
index 0000000..27631c4
--- /dev/null
+++ b/Sanchime.Functional/Extensions/Exceptional.cs
@@ -0,0 +1,15 @@
+using Sanchime.Functional.Products;
+
+namespace Sanchime.Functional.Extensions;
+
+/// <summary>
+/// 函数式异常扩展
+/// </summary>
+public static class ExceptionalException
+{
+    public static Func<T, Exceptional<T>> Return<T>()
+        => val => val;
+
+    
+    
+}