The appliance of many new technologies brought many benefits to modern society. Modern life is, generally, easier, faster and risen at the much higher level. The speed of modern technology use is such that it is almost impossible to have a complete view-only the benefits of modern technologies are noted. Mobile phones, laptops, tablets, drones, Internet, Facebook, Skype, 5 G network and many other examples of new technology application have lots of benefits. But, have these technologies started to be used with taking into account the potential by bad consequences that they can have? Can all potential by bad effects and consequences of modern technology use be predicted, analyzed and prevented? The main goal of this paper was to confirm and present that the increase of digital violence caused by usage of modern technologies and to show factors that are included in children protection from digital violence in Serbia. Research presented in this paper were realized by the author of the paper as longitudinal research for several years in several elementary and secondary schools in Nib, so as some research from world prove that increased use of modern technologies inevitably leads to digital violence, primarily among school age children. The paper also presents the role of different instruments in digital violence prevention and sanction in Serbia. Digital violence indeed presents a bad consequence of modern technologies and must be treated in appropriate pedagogical and legal way.