In this study, it was tried to determine whether the works of children's literature containing violence are effective on the violent tendencies of 7th grade students. In the research, one of the mixed method designs, triangulation (diversification) design was used. In the quantitative dimension of the study, the pre-test and post-test control group model was used, among the quasi-experimental designs, and in the qualitative dimension, the phenomenology design was used. The study group of the study consists of 50 students, 25 of whom are control and 25 of them are experimental groups, studying in 7th grade in Kahraman Kids Secondary School in Edremit district of Van province. In the study, the aggression scale developed by Buss and Perry as a quantitative data tool and adapted to Turkish by Demirtas Madran; Semi-structured interview form was used as the qualitative data tool. SPSS 18 statistical package program was used in the analysis of quantitative data, and content analysis method was used in the analysis of qualitative data. According to the quantitative results of the study, no significant difference was found between the scores of the experimental and control groups in the post-test of the aggression scale at the end of the application. According to the data obtained through the semi-structured interview form, it was determined that the students mostly liked the children's books containing violence, they found them exciting, fluent and beautiful.