The aim of the study was analyzys of reproduction of mechanization fixed assets in farms under investigation on the territory of Lower Silesia. The study was conducted in the period of three years since 2008 to 2010. Source materials came from 100 individual farms with profile of plant production located in the most intensive agricultural sub-regions of Lower Silesia. The analyzys found that in all area groups of farms except the smallest group the investment activity in the area of agricultural equipment was noted. The main source of investment financing of purchased machines in smaller farms were their own funds but in the largest farms from European Union funds.