The paper considers the concept and a system approach to the formation of market infrastructure in Ukrainian agriculture. Its marketing function and organizational elements are in the focus of the study. The changes in the agrarian sector have contributed to the development new market institutions as the commodity exchanges, agrotrade houses and agribusiness cooperatives. The important task is how to provide market access to the different types of agricultural producers irrespective of their legal status and volume of production. The results of the study have shown why certain elements of market infrastructure are progressing slowly.