The research urgency is conditioned by the strengthening of the role of educational institutions in the process of interaction between representatives of different cultures and religions, by the creation of favorable socio-psychological climate. Within the study of the educational environment, the authors identify its properties, conditioning the warning of students to be involved in radical and extremist activities. The authors conducted a sociological study of the level of students' ethnic tolerance (Kazan, Russia). The results of the study identify the need for correction of inter-ethnic relations that reduce their tension. The authors developed four levels of pedagogical conditions for correction of interethnic relations in educational environment (conceptual, contextual, technological, cadre). The paper is intended for researchers, teachers, psychologists, sociologists, dealing with the problems of preventive measures against ideology of extremism and for security in an educational environment.