This article draws special attention to the fact that in modern pedagogy practiced in our country, the problem of the role of the workers' collective in moral education is the subject of discussion. The author criticizes the point of view of pedagogues who destructively reject and substantiates the pedagogical expediency of using the principle of education in and through the collective of workers. At the same time collectivism is regarded as the most important moral trait of mankind, providing comradely relations in the collective of servicemen. Characterizing the educational potential of the collective, the author substantiates the modern criteria of the collective as a subject of education. As one of the tasks of realization of the pedagogical potential of the collective the organization of the group form of educational activity is indicated. Psychological advantages of group organization of educational activity compared to traditional forms of educational process organization are motivated. It is explained how these advantages contribute to the moral maturation of cadets.