The determinants of the development of the interethnic community are considered from the standpoint of the sociocultural approach and are exemplified with the community of the Altai Republic. The set of determinants includes social, cultural and personal components, and the content of each of them is indicated by a number of variables. It is concluded that the socio-cultural development of the Republic of Altai is hampered by economic factors rather than interethnic problems. Therefore, the scenario of successful development of the region should be based on increasing the well-being of the population, a significant role in which should be given to the development of traditional fields of employment important for the ethnic groups of the region.