Priorities of institutional support of modern forms of economy in a system of agrarian relation of Ukraine

International experience of state support of agriculture is analyzed. A necessity of development of socio-ecological-economic model of agriculture in Ukraine is proved. In the papers is proved the necessity of creation and function of social-ecological-economic model of agriculture development, where a social- -ecological-economic development is characterized like economic development of rural territories, rural employment in agriculture, the efficiency of employment etc. Based on the analysis of scientific literature, it’s confirmed that development socio- -ecological-economical forms of economy are accompanied with modification of the institutional structure of regulation of agriculture.