European integration in Ukraine has been acquiring qualitatively new meaning: from declarative foreign policy course, it has been gradually turning into a complex internal policy of reform. At this stage public opinion on European integration becomes extremely important, because level of support to a certain integration vector is an essential component of a successful policy of European integration and Europeanization of society. In population’s choice between European and Eurasian vectors significant regional differences existed and continue to exist. While the West and Centre of Ukraine traditionally preferred the idea of joining the European Union, the Southern and Eastern Ukraine’s support for European integration was significantly lower and majority of population was in favor of Ukraine's membership in the Customs Union.