The aim of the work is identify and define the role of public aid in investment activity in modernization of farms. The study is based on 129 randomly selected farms from Podkarpackie province. Research was conducted in 2012 in selected farms using questionnaire interview about farms organizations, the results of economic and evaluation of the investments. The period of analysis covered the years 2004 to 2011. It has been stated that in surveyed farms increased agricultural land and also improved the ratio of labor to the agricultural land and technical equipment of labor.