The paper presents the productivity size and structure of agricultural farms with regard to the production trend. The aim was achieved based on the research carried out in 80 farms of the Southern Poland. Objects for research were divided into 4 groups: one-trend farms – aiming at plant and animal production, two-trend and mixed farms. It was explicitly proved that productivity of farms from the analyzed region depends on the production trend. The highest value of commodity production was reported in one-trend farms – plant production – 27,242 PLN/ha and was over 39 times higher than in case of one-trend objects – animal production (696.3 PLN/ha).