In this article, the authors systematized and proposed a system of methodological support for the study of the processes of formation, efficiency of mechanisms of functioning and prospects of development of the regional food market. The researchers believe that a complete system of indicators of living standards should include not only quantitative but also qualitative indicators, grouped according to the proposed features. Also, the analysis of the market of food products of the Republic of Crimea was carried out. It is noted that to assess the level of food security in a particular region, it is necessary to substantiate the system of criteria and indicators that comprehensively characterize its current state, dynamics, trends and compare its status with other actors. The authors believe that the key to the effectiveness of the regional food security system is the availability of procedures for a comprehensive diagnosis of its condition, which makes it possible to take into account the relationship of various factors. The procedure of system diagnostics of the level of food security in the region is proposed. It is concluded that the category of food security should be considered systematically and integrated, both within the country as a whole and in the regional aspect in particular, due to the diversity of natural and climatic conditions, socioeconomic situation of individual territories, the demographic situation.