Europeanization acted at all stages of society development in Slovakia, with varying degrees of intensity and in various forms, since the signing of the association agreement with the European Union. A significant impact was already in the stage of transition, when the consistent implementation of the Copenhagen criteria insist by the EC/EU help to return to the path of democratic development in Slovakia. However, it wasn’t just about the application of the generally accepted principles of parliamentary democracy, but also on the active impact of the EC/EU institutions within the existing opportunities provided by the signing of the Association Agreement. A qualitatively new stage began after completion of the Copenhagen criteria and the opening of negotiations, which was to implement acquis communautaire into the internal legal order of the country. At this stage, clearly dominated the process of Europeanization “top-down”, i.e. the adoption of standards, laws of the European Union, to make country compatible with other countries of the EU. After the entry of the Slovakia into the EU, a two-sided process of Europeanization: “up-down” and “bottom-up” has started.