Abstract: With the Internet’s becoming more and more popular in China, adolescents have been one of the most frequent users. Although enjoying the advantage of the Internet, some of them have gotten into Internet addiction for staying online too long and involving in some services too deeply. Based on the development of adolescents, the relationship among their egocentric thinking, self, attachment, personality, life events, and Internet addiction were explored, on which foundations could be laid for the development of Adolescent Pathological Internet Use Scale and the prevention of Internet addiction. Also, the adolescents’ Healthy Internet Use was discussed based the finding of studies.

Key words: adolescents, internet addiction, prevention, healthy internet use