At present in Japan, sport based in communities, e. g. Sports clubs which are integrated in the community, have been strongly in demand. On the other hand, sport affiliated to companies is now gradually declining and with "Soccer J League", which was established in 1993,it is said, an era of new sport culture in Japan has been launched. These tendencics can be interpreted as those which correspond precisely to the structural changes of Japanese society as a whole. In this paper, these tendencies are investigated in terms of : 1) characteristics of accepting and fostering sport in Japan 2) the flucuation of modernity in general. As a result, this author contends that many people now tend to prefer "sport for fun" which can give inner satisfaction to participants rather than competitive sport, where "achievement" plays a central role. This change originates in the fluctuation of modernity accompanied by postindustrialization of society. The community is therefore expected to be the main body for nurturing "sport for fun" instead of achivement-oriented institutions such as schools and companies
