The proposed monograph presents the theoretical and methodological foundations for the formation of a multi-ethnic culture of young adolescents, reveals the essence, genesis, ideas, approaches, aspects of the concept of “multi-ethnic culture”, presents a model for the formation of a multi-ethnic culture of young adolescents in the process of assimilating the traditions of the peoples of the Volga region; theoretical substantiation of the pedagogical conditions for the formation of multiethnic culture among schoolchildren. The monograph is intended for teachers, teachers and students of pedagogical universities, students of advanced training courses, postgraduate students of pedagogical specialties.