The objective of this study was to compare some selected quality attributes of five frankfurters (two poultry and three pork products) manufactured by Polish producers. The investigations were conducted after the new rules referring to labelling of the food products (including a new definition of meat) had been implemented in Poland. Four batches of the frankfurters were assessed. There were calculated the following frankfurter parameters: contents of water, protein, fat, NaCl, collagen, and pH were determined. Based on the chemical composition, the energy values of frankfurters were calculated. Products manufactured from pork meat were characterized by a higher fat content and a higher energy value (23-25%, 1094-1198 kJ/100 g) if compared with the relevant poultry products (ca. 19%, 934-989 kJ/100 g). With regard to the majority of frankfurters, their collagen to crude protein ratio did not exceed the levels as provided by the definition of meat (25% as for pork and 10% as for poultry). In the case of one poultry product, the content of collagen in the total protein was higher than allowed, but this fact was explained and justified by its manufacturer declaration on having added some collagen protein. Although the requirement to obligatory apply the Polish Standards has been annulled, no facts of exceeding the permitted values were stated in the chemical composition of the frankfurters assessed.