Social networking site (SNS) has become one of the most influential and popular social applications in the information age because of its openness, archiving and interactivity, and the impact of SNS use has also become a focus of relevant research scholars. Teenagers are the most active users in SNS, so it has important influence on the establishment of interpersonal relationship, self-concept development and psychological social adaptation for teenagers. In recent years, the SNS as a potential risk factor for depression in adolescents has been...