This report is prepared to understand the market of Japan. Japan is one of technologically developed country in the world. But population growth of this country is decreasing now. To starting a new business in any country the company has to look the feasible factors of the country so it is mandatory to conduct PEST analysis of the country. This analysis consists of four factors political, economical, social and technological environment of the country. And the company’s leader will have to see the approaches of leadership style which one is the best suitable in an organization structure. And Porters five forces analysis play vital role to understand market situation before entering in new market. So this report explains all these above factors of Japan.