Violence is becoming an increasingly noticeable social problem. It represents a complex phenomenon where it is important to clearly determine the type of violence and the context in which it occurs. Violence related to children occurs in two forms: violence perpetrated against them and peer violence, i.e. violence between children. Violence can be physical, psychological, sexual and in the form of child neglect. In whatever form the violence takes place, it has a negative effect on the holistic development of the child and leaves far-reaching consequences. Violence against children can take place anywhere, and today, in the world of modern technology, it also takes place in the digital environment. As violence against children and peer violence that ends in serious bodily injury or death is reported every day, it is not surprising that the number of studies dealing with the development, factors, and ways of preventing and changing violent behavior has also increased. The causes of violent behavior are sought in personality traits, parenting and the media to which children are exposed on a daily basis. It is a fact that prevention must start in preschool age. It is of great importance that educators and professionals recognize an aggressive child in time and prevent violent behavior with targeted activities.