This paper will discusss the globalization in business ethics of Japanese corporations from the stakeholder's viewpoint. Japanese corporations recruited the large number of the non-professional and manual workers from Asian and South American countries in the 1980's. Generally speaking, such workers have been treated cruelly by the corporations in Japan. The foreign manual workers have been usually paid low wages and their working hours have been longer than those of average Japanese workers. As members of the stakeholder groups of the corporations in Japan, foreign workers have been given only small power. Their fundamental human rights have been infringed. Even under the capitalistic system in which market decides almost everything, the basic human rights should be an exception. Japanese coporations ought to treat foreign workers ethically. If they do so, the Japanese corporations will be truely globalized. The Japanese management system has been famous for its human-oriented style. So it will be possible to change the management attitude to the foreign labors in the near future if Japanese corporations make serious efforts.