This article represents a contribution to the debate over the Europeanization of political parties, one of the hot topics in contemporary political science. It explores the extent of Europeanization in political parties represented in the lower chamber of the Parliament of the Czech Republic by means of an analysis of party election manifestoes. The extent of Europeanization in these documents is analyzed using a bi-dimensional conceptualization. The first we call the quantitative dimension , assesses the space taken by the topic of European integration in each manifesto. The second one we call the qualitative dimension . This, using the analysis of content, measures the degree to which the European integration issue is elaborated in the programs. Using this conceptualization, we analyze the election manifestoes of five Czech political parties in the period 1996–2006.