The theme (subject) of graduate thesis is The impact of social networks on education. Social networks have become an imperative in today's society. All the younger generation of children use social networks, although most have less than thirteen years of life. The thesis is divided into two parts: theoretical and research. In the theoretical part of the paper, social networks are shown: Facebook, Instagram, YouTube, Linkedin, Weibo, Reddit, Musical.Iy and Twitter. And social networking applications: Viber, WhatsApp, Snapchat, Messenger andTinder. While the second part of the paper deals with the research methodology and the results of research on a sample of 104 children in the Višnjan, Poreč and some other schools, which is also the goal of the work. Research has shown that most of the children, from the 3rd to the 7th grade of primary school, have a smarthpone to influence their education because they use various social networks and video games that are not educational, that the smartphone is very little used for education and that there are individuals who can not imagine the day without a smartphone.