Abstract: Martin Heidegger is the pioneer of phenomenological philosophy of technology,and he has made a pioneering contribution to philosophy of technology. Meanwhile he has also made a deep analysis of the nature of both science and truth. Based on the system of Heidegger's thought,this paper mainly focuses on clarifying Heidegger's attitude towards the essence of technology and the relationship between science,technology, truth and western metaphysics. Finally,it will present a special perspective for us to reconsider the nature of science and technology.