The study attempts to identify differences in the level and structure of investment in dairy farms in the years 2007-2012. Particular attention was paid to the sources of investments financing. Analyzes are based on data collected in the framework of the questionnaires from farmers. Studies have shown that increasing scale of production lead to higher investment activity of farmers. Households with larger-scale of farming to higher extend finance their investment from its own funds (income) and commercial loans. In smaller holdings relatively important sources are direct subsidies and preferential loans.