The article presents the results of theoretical and empirical research on the impact of social networks on the individual’s well-being.Nowadays, social networks have become an integral part of modern life, and with each passing month more and more Internet users are being registered in various social networks worldwide. In Ukraine, the most popular social networks are Facebook, YouTube, Instagram, Telegram.The phenomenon of psychological has been studied: within the framework of eudemonistic and hedonistic theories; based on the positive functioning of an individual; considered in terms of preservation of psycho-physiological functions; as a holistic subjective experience of an individual.It is determined that all our respondents are involved in social networks, and most of them use several social networks at the same time. Most are registered in such networks as Instagram, Facebook, Telegram. More than half of Instagram respondents have 200 or more subscriptions. For the majority of respondents, social networks are a means of communication and opportunities for new acquaintances.Respondents, who spend up to 4 hours on social networks, feel more functional psychologically, are more satisfied, have a higher interest in life, and have a more positive mood than those who spend much more time online.Respondents from the group with a short stay on social networks are more likely to show emotional barriers to communication. At the same time, the group whose representatives spend more than 4 hours on social networks, has higher rates of organizational and communication skills.Respondents, who spend limited time on social networks, show a more positive attitude on looking-glass self, internal conflict and self-blame scales, and those who spend more than 4 hours on social networks – on openness, self-confidence, self-worth, self-acceptance, self-attachment scales.Correlations between the length of stay in social networks and the parameters of well-being, emotional barriers in communication, attitude, communication skills have been determined in the group that is on social networks for up to 4 hours a day. In the group that communicates on social networks for more than 4 hours, there are many more correlations. There are correlations between the length of stay in social networks and the parameters of well-being, life satisfaction, emotional barriers to communication, attitude.We see prospects for further research in the study of the structure of well-being in people with Internet addiction.