Modern international and internal political situation of Ukraine in many respects depends on alignment of political, military strategic and economic forces in modern Europe. European integration, which has been developing especially actively in the last decade due to deep evolutionary changes in the EU, presents essential part of the process.Such setting of the problem is tightly connected with the aspiration of Ukraine to participate in European integration and to enter the EU in future prospects. It was more than once declared by the governing body and is reflected in the official documents.Advancement of Ukraine towards European integration relates with the whole complex of both internal and international problems. Nowadays mutual relations of Ukraine with the EU are mainly grounded on the Agreement about partnership and cooperation acting since 1998. Transfer to a deeper stage of cooperation in the form of associated membership and preparation for the commencement of negotiations about entering the EU is not foreseen in nearest several years as the Governing body of European Commission declares. Ukraine is proposed to build cooperation with the EU on the ground of bilateral relations and neighbor cooperation. Such conditions can be explained by both internal problems of Ukraine and the developments in the EU itself. In the first term it is inconsistency between the levels of economical development and social political field to those of the EU standards and slow progress on this way. Besides the EU is on the stage not only deepening of integration processes but also increasing of its membership. For the first time it is happening in such mass number and includes former socialist states. Entry of new members is connected with many problems .In the fist term with social economic ones. Therefore after 2004 when a group of the states entered the EU, inevitably, so called ?adaptive pause? in enlargement and in distribution of such promises, would appear. It will negatively influence on the movement of the other CEE states towards European integration even in case of great spurt in the field of market economy and democratic changes. Reasoning from these circumstances, it will be extremely important for Ukraine the consequences of the EU enlargement and the outline of cooperation with the EU in the neighbor status, which would remain in the future due to the explained internal and international reasons and would be extremely important for development of Ukraine. Such a scheme is on the stage of working out and, to elaborate the optimal foreign policy line of Ukraine from one side and the EU strategy from the other, a fair and thorough appraisal of new situation is necessary.Aims and tasks of the research.The main aim of the my current research is the study of the key factors of the influence of the EU enlargement on Ukraine.To implement the given aim the following tasks are set:1.To trace the specific character of the new stage the EU enlargement, completing the formation of the economic and monetary union, progressing on the way of formation of the political union and deepening cooperation in the security sphere.2. To analyze main European and North American researches as well as the official documents and statements on the EU enlargement and relations between Ukraine and the EU.3. To study main political and economic consequences of the influence of the EU enlargement on Ukraine in trade and economic sphere. It is important to clarify the eastern economic policy of the EU after the enlargement would be on the one hand and if Ukraine would be ready to offer in return any effective internal structural and institutional changes on the other hand. 4... ..PAT.-Conference Proceeding [ABSTRACT FROM AUTHOR]