Development and deepening of processing of agricultural products, including grains, improvement of its quality characteristics will contribute to increase of employment in rural areas, satisfaction of internal and external demand, increase of foreign exchange receipts in the state and incomes of producers. The aim of the article is to evaluate the prospects for the development of the market for large products in Ukraine, taking into account trends in changes of supply and demand. The methodological basis of the study: the systematic and dialectical approaches and the use of methods of synthesis and analysis in determining the patterns and features of the market for large products in Ukraine. The article analyzes the dynamics and structure of production of grains, identifies the problems of increasing the supply of their main species. The factors of internal and external demand for national grain and future trends of development of this market have been considered. It has been proved that the production volumes of the main grains depend directly on the availability of raw material supply and its quality, the demand for finished products both in the Ukrainian market and from the side of the importing countries of Ukrainian products, as well as the retrospective profitability of the sale of alternative crops. Expansion of national sales in the national market can be achieved through the comprehensive application of non-tariff restrictions that do not conflict with WTO agreements. The scientific novelty of the research is to systematize the factors of formation of demand and supply of large products and to analyze their impact on the market environment. The practical significance of the research lies in identifying the main areas within which the problems of further development of the large industry are generated, which creates the basis for the development of measures to minimize their negative impact. Keywords: grains, grain production, grains market, processing enterprises, grain production.