Received in the revised form:

The objective of the paper was to determine operating costs of the machinery park in organic farms. Moreover, the level of farms equip-ment with farm machines and devices was determined and the use of their manufacturing capacities was assessed. The scope of the study covered the research in 50 certified organic farms located in the south Poland in Małopolskie, Podkarpackie and Świętokrzyskie voivode-ships. The study was carried out within the development subsidy no NR12-0165-10 "Innovative impact of technology and IT support of management on efficiency of production in organic farms". Average area of AL is 12.48 ha. Operating costs of the machinery park were 30 993 PLN·farm.-1which annually per one hectare of AL generates the value of PLN 3 369. Amortization constituted the highest participation in total costs, which was as much as 65.7 % and energy carriers related to consumption on production of diesel oil, leaded petrol and electric energy. The highest use of manufacturing capacities of the machinery park of organic farms was reported in case of a manure spreader, presses and windrow collectors. In case of spreaders, 19 years are necessary for their total amortization, and in case of presses and windrow collectors – 20 and 21 years. In the researched organic farms, average annual rate of use of possible manufacturing capaci-ties of the majority of machines was only 0.4-1.3%. It forces to length-en the operating periods, which constitutes the main brake on pro-gress. Keywords: organic farms, operating costs of machines, machinery park, use of manufacturing capacitie