The purpose of the article is to reveal the procedure of agrarian reform in Ukraine, its scientific and legal support, to work out the organizational scheme of land reform, which reformed land relations in Ukraine, which was the basis for creating marketoriented economic formations capable of working effectively in new economic conditions. Research methods. The basis for the study were the fundamental provisions for the development of the agricultural sector of the economy in market conditions, economics of nature and land protection, the theory of agricultural production management, sustainable development in new economic conditions, improving the legislative and regulatory framework of economic entities. To achieve this goal, modern general scientific methods and research techniques are used. Research results. The introduction into production of scientific developments of the NSC "Institute of Agrarian Economics" on the agrarian reform in Ukraine made it possible to double the production of gross agricultural output at constant prices 2016 Scientific novelty. The theoretical, methodological and organizational and legal foundations of reforming land relations and the agricultural sector of the economy in Ukraine have been developed, the essence of transformation processes in agricultural production in the new economic conditions has been revealed. Practical significance. Agrarian reform makes it possible to achieve an increase in production and its efficiency. The research results can be taken into account in the further development and improvement of the regulatory framework and organizational and legal structures of agricultural production. Refs.: 20