Abstract: The phenomenon of “hikikomori” is a social pathological phenomenon in the process of modernization,a passive state with the loss of social behavior and selfreclusion.During the sharp transformation in Japanese modern society,the hikikomori experienced from germ,an increasingly common phenomenon to a social problem.The teenagers’ hikikomori appeared in the 1970s when Japan has turned into an affluent society after the highspeed development of economy.And in the 1980s,it became increasingly common,because that mass consumption society approached and the problem of “nor school attendance” was highlighted.In the 1990s,Japan’s bubble economy collapsed and a pluralistic era of transformation formed,so the phenomenon of teenagers’ hikikomori gradually evolved into an obvious social problem.Since the 21st century,with the appearance of “social inequality” and the deepened trend of fewer children and more elders,more and more serious hikikomori has developed into a remarkable problem influencing Japan’s future development.

Key words: Japan, social transform, teenagers, problem of hikikomori, evolution