An entrepreneur and entrepreneurship used to be defined on many ways. The author has defined the entrepreneurship as readiness for changes improving the economic situation. The paper presents results of research conducted within sheep farms in Podlaskie province. The research was carried out in 2003–2004 and 2009. The results of 2003–2004 were a basis for comparison of changes in farmers opinions in first years of the EU integration. Sheep farmers’ readiness for changes (entrepreneurial behaviour) was expressed by possibilities of increasing sheep production profitability. However, a level of entrepreneurship of the sheep farmers was low. Nevertheless, taking over farms by young farmers could result in taking up innovation decisions.

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