The article deals with the problem of balanced unemployment in relation to the Polisheconomy. This issue with its variety considerations and economic, social and politicalimplications is today one of the most important matter. Author analyses this problemtogether with its reasons and refer it to the Polish economy. In first and second part of thetext there are presented basic assumptions of natural unemployment theory andNon-Accelerating Inflation Rate of Unemployment. Third part is an analysis of balancedunemployment in the Polish economy