The purpose of this paper is to establish a post humanistic context of evaluation of a variety of contemporary design trends, and then put forward a preliminary concept of post humanism design. the post humanism here is not only the sociological phenomenon brought about by the embodiment and separation emphasized in "instrumental humanism" 1 ②, or the "techno Enchantment" of "trans-humanism". This paper tries to combine the post-humanism with structuralism, design rationalism and other theories that have far-reaching influence on contemporary design, and puts forward an idea of a solution combined with various dilemmas and problems in the field of design theory and design history.