diff --git a/graphene/types/mutation.py b/graphene/types/mutation.py
index 455aab83..21ed6d0c 100644
--- a/graphene/types/mutation.py
+++ b/graphene/types/mutation.py
@@ -76,6 +76,8 @@ class Mutation(ObjectType):
 
     @classmethod
     def Field(cls, *args, **kwargs):
+        extra = dict(description=cls._meta.description)
+        extra.update(kwargs)
         return Field(
-            cls._meta.output, args=cls._meta.arguments, resolver=cls._meta.resolver, **kwargs
+            cls._meta.output, args=cls._meta.arguments, resolver=cls._meta.resolver, **extra
         )