The article analyzes the changes that characterize Spanish approach to political aspects of European integration, and more specifically, the approach of different political parties to the process. Spanish political circles and even think tanks pay relatively little attention to theoretical aspects of European integration, whereas practical relations with the EU are of paramount importance. This is due to the fact that the question of belonging to the EU was settled in Spain long ago and definitively. Majoritarian character of Spanish democracy facilitates the transfer of powers from Brussels to Madrid, i.e. objectively favors the choice of federalization. Nevertheless, Spain continues to upload its national preferences onto the EU decision-making process. In recent years, Spain’s influence and authority in the EU have declined because of the economic crisis. This loss of authority will be overcome as soon as the economic growth is resumed. Constantly emphasizing its belonging to the core of the EU, the “Old Europe”, and to the core of the euro zone, maintaining close relationship with the Latin group within the EU, Spain has consistently advocated a united and strong Europe with a Common Foreign and Security Policy.