The Polish dairy industry adjusted to the conditions of membership in the EU where the milk market is among the most regulated food markets. Despite elaborated market regulations, prices of raw milk and milk products in Poland were characterised by major variability. This in particular concerns buying-in and selling prices. There is a surplus of supply on the milk market which is exported. Therefore, the price situation in the country is strongly dependent on the economic situation on world markets. Buying-in and selling prices show similar directions of changes as world prices. Price variability has also been noted in the national marketing chain because prices on its respective stages are characterised by a very considerable dynamics. The price transmission process in the national supply chain of dairy products shows major asymmetry. Thus, what is justified are market policy instruments which limit risk to running economic activity and strengthen the position of farmers in relations with dairy industry and retail trade.