The article considers the main approaches to understanding and explaining the concept of "conflictological culture of personality". Different authors offer various definitions of this concept and emphasize different components in it. However, all of them hold a common opinion regarding the understanding of the importance of research and development of the conflictological culture. We adhere to Shcherbakova’s definition, according to which conflictological culture is an integrative quality of personality, which is based on humanistic values. Its structure is represented by the culture of feelings and thinking as well as behavioral and communicative culture . The purpose of our study is to examine the level of conflictological culture development in older adolescents. The sample consists of older adolescents. This age is characterized by special sensitivity to various kinds of changes, both positive and negative. On the basis of the obtained data we developed and tested the program of conflictological culture development in older adolescence. The cognitive-behavioral approach A. Beck acts as a methodological basis of the psychological training program. As a result of participation in the training, the following changes were obtained in the study sample: adolescents demonstrate a greater ability to prevent and manage conflicts at all stages; they show a greater readiness for dialogue, the ability to adequately verbalize their own and other people's experiences; to a greater extent they possess the techniques of assertive communication compared to adolescents from the control group. The obtained results confirm the effectiveness of the program developed by us and the validity of the hypothesis of the study. The novelty and practical significance of our study is determined by the fact that conflictological culture is studied for the first time in our country.