One of the most important factors of competitive production is mechanization, which enables tasks to be done on time and in a high-quality manner. Nowadays, in Hungary, many distributors deal with the trading of agricultural machines and spare parts. The operating costs of these machines constitute a significant proportion of the expenses involved in agricultural production, and thus the appropriate and inappropriate use of machinery can significantly influence the efficiency of farming. The goal of this study is to present the market of agricultural power machines, examine the operating costs and analyse the causes of changes in the Hungarian machinery market during the past few years. In our research, it can be seen that EU co-financed support for machinery and equipment investment have a great impact on the replacement of power machines and average annual usage, since after EU subsidies are no longer incoming, the number of agricultural machines sold has decreased.