Abstract Purpose of the study. The purpose of the work is to increase the efficiency of the use of secondary market tractors due to the improvement of the technological process of their input control. In order to achieve the set goal, the following tasks were solved: the methodological foundations of the incoming quality control of tractors on the secondary market were justified; the proposed algorithm of the technological process of the input quality control of the tractor on the secondary market with the determination of the main functional, ergonomic and traction-energy indicators was implemented in practice. Research methods. Materials and initial data for research became the basis of qualitative assessment of tractors, taking into account the specific features of the development of the secondary market of tractors. Research methods consisted in studying, analyzing, comparing, summarizing and evaluating data regarding the results of determining the consumer properties of tractors under their operating conditions. The results of the study. The secondary market of tractors in Ukraine is in the stage of formation, during which it is evaluated, first of all, their efficiency, which characterizes not only the ability to work (perform the necessary functions), but also to comply with regulatory and technical and design documentation. Currently, used general-purpose tractors of the «KhTZ-170», «MTZ-80» and «John Deere» series 8R tractors are sold in Ukraine, during the purchase of which their operability is predicted in the presence of damage that manifests itself in a violation of the tractor’s serviceability while preserving its operability. Based on the results of research and the experience of other countries, the need to introduce a separate legal act in Ukraine, which would regulate the requirements and procedures for assessing compliance for single samples used, as well as independently assembled is substantiated. Conclusion. An important direction of improving the technical equipment of the agricultural sector of Ukraine, as well as the loading of repair and other agricultural service enterprises, is the development and effective functioning of the secondary market of tractors and agricultural machines, which will allow speeding up and improving the quantitative and qualitative composition of the machine-tractor fleet. At the same time, one of the main elements in the system of improving the quality of agricultural machinery is the proper organization of incoming control of these products on the secondary market. The issue of commissioning (registration) of tractors purchased on the secondary market is currently not finally settled in Ukraine and requires the development of a separate legal act. Key words: tractor, consumer properties, secondary market, input control, measuring equipment, performance forecasting, and tractor registration.