The article is dedicated to investigation of different approaches in the field of juvenile prevention and juvenile justice. The article examines the features of juvenile justice and juvenile prevention in different countries, in particular, in the United States, Britain, France, the Netherlands, Germany, Italy, Ukraine. The existing models of organizing the activities of the juvenile police, other specialized bodies and institutions for children operating in foreign countries are considered. The issues of organization and implementation of crime prevention among children in different countries of the world have been studied. Special attention is paid to the US experience in the field of juvenile justice and juvenile prevention. In particular, the system of specialized bodies and institutions for children in the United States was studied. International systemic acts on the settlement of juvenile liability are analyzed. The analysis of world models of juvenile justice, in particular, Anglo-Saxon, continental, Scandinavian, is carried out and their peculiarities are singled out. The positive features of each of these models, which can be borrowed, in particular, by Ukraine, have been identified.