In the framework of the integration associations, each state must ensure, first of all, its food security with the economically feasible development of the agricultural sector of the national economy. This study examined the food security of the Republic of Kazakhstan in the context of the integration of the Eurasian Economic Union members. The study proposes a method for calculating an integral indicator of food security in Kazakhstan, based on determining the weighted average value, taking into account the significance of each group of indicators. The final assessment is given according to the created scale of integrated assessment of food security. Three groups of indicators are used: food availability, availability and sufficiency of food consumption, quality and safety. The research results showed that the state of food security of the Republic of Kazakhstan during the examined period is assessed as insufficient, mainly due to a decrease in the availability of food and insufficient use of the resource potential of the agricultural sector. The study concluded that when solving practical problems, the methods for assessing food security do not allow researchers consider important characteristics of each country and use them for decision-making. It is necessary to further develop the methodological foundations for creating tools for measuring, evaluating and regulating the processes of interaction between the EAEU member states. The material is addressed to employees of state and municipal government bodies, economic educational institutions and the scientific community.