The emergence and development of large integrated formations in the domestic agro-industrial complex is a natural reflection of world trends. In the conditions of fierce competition on the market of agricultural goods and food, large integrated structures, using the advantages of specialization, concentration and cooperation, are able to achieve a high level of marketability and profitability of production in a short period of time. In conditions of weak state support, agro-industrial formations became the main investors of agricultural organizations and received comprehensive support and assistance in certain regions. The rate of development of the agricultural sector in such regions shows that large agro-industrial formations contribute to the growth of agricultural production, employment and incomes of the rural population. They are able to ensure a certain price parity between the agricultural sector and other sectors of the economy, reduce prices and make products more accessible to the population by eliminating intermediary structures. The development and improvement of the economic efficiency of various integrated formations and their prospects is a complex and contradictory process, since the current situation largely depends on the political, legal, socio-economic and other conditions in the country. The development of agro-industrial integration is a complex objective economic process. Agricultural enterprises enter into integration ties, seeking to mitigate the risk caused by the specifics of agricultural production. Agricultural enterprises also strive to ensure stable incomes thanks to the availability of a reliable raw material base and sales markets for their products. These prerequisites created the conditions and gave impetus to the revival, formation and development of integrated associations in agriculture and explored their significance for small forms of entrepreneurship. Therefore, the development of integration processes in the field of agro-industrial complex may be the most important condition for revitalizing the activity of agro-industrial complex organizations and stabilizing the region's economy. In this article, we conducted a theoretical review of the classification of integration processes. Scientific works and publications of domestic and foreign scientists and specialists in the field of integration processes on the investigated problem served as the theoretical basis of the research.