The paper on hand of the long term data from public debt, GDP and inflation in selected countries analyzes their interconnection. The analysis method is similar to the methods used by Reinhart, Rogoff (2010a). The original study did not include all new EU countries. The aim of this paper is to assess the impact of the debt level on the economic growth and inflation in the selected new EU countries, which are not listed in the original paper from Reinhart, Rogoff.