Agricultural production in Russia solves the most important national problems - food security and import substitution. The conducted research substantiates the need to improve the engineering service of the agro-industrial complex through the introduction of modern innovative technologies. The article outlines the basic principles and technical means that determine the system of maintenance and repair of machines in the agro-industrial complex, as well as the mechanism of relations between manufacturers and consumers of technical means. Current issues of individual subsystems of the repair and maintenance base in the engineering service of the agro-industrial complex and the main groups of repair and maintenance impacts on domestic agricultural machinery were considered, and a relationship was established for foreign-made machines with all elements of maintenance, repair, modernization and disposal. Information is presented on depreciation rates and recommended distributions of the volume of repair and maintenance work by facility.