The master's thesis deals with the Influence of the program 'Be Aware, Respect and Speak' on points of view on peer bullying, as we deal with the problems of peer violence in schools, with special emphasis on preventive measures. The master's thesis consists of both theoretical and empirical work. In the theoretical part of the task, on the basis of professional literature we first define peer violence, then we present its forms and participants in peer violence and later on we present the underlying causes that lead to such violence. Below we discuss preventive responses on the issue of peer preasure. Afterwards we present some of the existing prevention programs in Slovenia, among which is the preventive program called 'Be Aware, Respect and Speak', which has been carried out in three primary schools in Ljubljana in the last three years, and at the end of the theoretical part we also present it in more detail. In the empirical part of the task, we determine the influence of this preventive program on students' attitudes towards peer violence. We have been interested in whether there are any differences in attitudes about peer violence among the pupils who participated in the program 'Be Aware, Respect and Speak' and those who didn’t. Nevertheless we only confirmed two hypothesis out of seven, foundings of our reasherch show that we can spot small differences between pupiles that were includet and the ones that werent includet in our preventive program 'Be Aware, Respect and Speak'.