Recently, multicultural society building has been regarded as an important and urgent problem in Japan. Nevertheless only few attempts have so far been made at developing reliable theories of it. So our concern is to consider what and how community education ought to do for multicultural society building. In the case of examining it, we have gotten a lot of inspirations and suggestions from Prochaska's "Stages of change model" and Berry's "Acculturation and cultural contact" theory. The findings are as follows. From the viewpoint of multicultural society building, it is indispensable to construct the partnership between Japanese residents and foreigner residents. For that purpose, both residents must get acquainted with different cultures mutually. It is also important for the both to recognize with each other as the same community members. And then they shall be prepared to charge themselves with participation in decision making and problem solving in community cooperatively. Considering community education, the educational program should be consisted of three parts. The principal object of the first part is cognitive learning about different cultures. The second part aims at consciousness raising and transformation. And the last phase will bring the modification in behavior as members of the community.