The aim of the research was to identify and group conditions affecting the development of entrepreneurship among agricultural producers. The article presents opinions of a purposefully selected group of farmers taking part in the work of a team appointed by the voivode for the preparation of a diagnosis of the socio-economic situation of agriculture in the Warmian-Masurian Voivodeship. Using the technique of a focus group interview, among others, opinions on the forms and areas of entrepreneurship of agricultural producers and conditions for its further development in the Warmian-Masurian Voivodship were obtained. Barriers have been defined, including the poor innovative nature of commenced undertakings, low interest in cooperation with other economic entities and low social capital, especially in interaction with the socio-cultural and economic environment. The obtained assessment by means of the FGI method allowed to classify factors influencing the development of entrepreneurship of farmers into five groups including the conditioning, stimulating and maintaining character of determinants having an impact on farmer entrepreneurship as well as those with an indirect and local impact on entrepreneurship development. In the case of factors conditioning the development of farmer entrepreneurship, the following proved important: individual predispositions of entrepreneurs (including creativity, optimism, commitment), competition on the market (market niches, mobilization for operation, healthy competition), the state of equipment of farms with machines, devices, buildings and structures and the possibility of obtaining financial resources (EU funds, loans, own resources).