The contemporary stage of society development is characterized by the inconsistency of two very ambiguous processes – the strengthening of the economy globalization and the growth of its regionalization in the system of interregional relations. The globalization of the economy is manifested by the market, which blurs the boundaries between countries, but regionalization, especially within the boundaries of national economic complexes, develops through the decentralization of management as a special type of economic relations management. The regional policy implementation can be effective only providing a specific objective assessment of the situation in the region, tasks and prospects of its development in the context of national priorities. For the Republic of Crimea, issues related to interethnic conflicts are relevant within the framework of the conceptual regulations of socio-economic sustainable development. According to mentioned above issues, the analysis of the situation and processes preventing their development in multi-ethnical society are carried out. Sustainable development of the region proves to happen only as a result of ethic society renovation, the formation of a new system of values, new moral imperatives.