This paper examines the necessity and importance of cooperation expansion of high-class technical human power in Japan-Korea`s the part material industry, and is groping for the concrete plan for it. The results showed that the environment to say and which is turned to cooperation expansion of high-class technical human power coming out is preparing between Japan and Korea. For improvement in advanced manufacturing technique, technical human power of Japan is required for Korea. Moreover, in order for Japan to also create new business, Korean technical human power is required. Therefore, considering the relations of interdependence between Japan and Korea`s the part material industry, this paper is arguing that the plan of the following cooperation expansions should develop. First, should expand more the exchange program of the mutual technical human power in the part material industry promoted now. Second, it is building the reformist network of global technical human power between Japan and Korea.