Abstract
This article investigates social changes in postwar Japanese society in terms of social mobility and generations. First, we discuss the relationships between social change and social mobility, arranging the current history of Japan as per social mobility between the metropolitan and the provinces or between cities and villages. From this perspective, we observe the aspect of social disorganization, while from the perspective of family and generations, we see the adaptation aspect. Following these arguments, the formation of a widespread system that is made by mobility in the last sixty years influences the present stage of Japanese society. Although the studies remain, discussing about risks of the widespread system, the subject getting over the risks, and its decision making process, the prospect of the social change in Japanese society is indicated as much as we can at present.
