The article describes the possibilities of public-private partnership as a component of providing the institutional ability of further production, stocking and processing capacities’ modernization with the purpose to promote Ukrainian agrarian sector competitiveness, as well as creating favourable conditions for balanced development of diversified innovative production in the agrarian sector itself and in the connected economic activities. Critical evaluation is given to the existing normative-methodical support for investment-innovative projects, realized through public-private partnership in national agrarian sector. Also, an author’s approach is suggested to the indicative activities basis decompression and the efficiency evaluation of such projects as a component of the investment relations system between state and private partners in the agrarian sector.