The article analyzes the influence of social networks on the formation of the personality of adolescents. Since social networks are widespread, especially among teenagers, they directly affect the process of their personal development. In adolescence, a person develops skills of self-knowledge, assimilation of social roles, and building relationships. During this period, the impact of social media is much higher. They influence the formation of values, attitudes, behavior of adolescents, as well as their psychological and emotional state. In this paper, the positive and negative sides of social networks in the formation of the personality of adolescents are analyzed and aspects of their influence on attitudes to life and society are considered. Also, on the basis of theoretical and methodological research, experimental work was organized, which consists of 3 stages: identification, formation and generalization. The ascertaining experiment was attended by students of grades 7-8 (24 students) of the I. Altynsarin Gymnasium No. 23, Taraz. There are 12 students in the experimental group and 12 students in the control group. The Rosenberg self-assessment questionnaire and the Spielberger-Hanin anxiety scale were used to obtain data before and after the experiment to show the positive dynamics of the results obtained.