The role of the Presidency in the framework of the institutional system of the European integration, in the opinion of experts before the adoption of Lisbon Treaty, underwent systematic growth. The leadership of successive Member States of the European Union exerted a significant influence on the agenda of the European project. The presidency of the European Union countries occupied a fundamental position, especially in the areas of European integration, operating on the principle of intergovernmental method (II and III pillar). After the adoption of Lisbon Treaty, the changes in the institutional architecture of united Europe led to the modification of the role of the state Presidency in the EU Council. The loss of a number of powers by the Presidency in the framework of united Europe resulted in the establishment of new functions connected with the Permanent President of the European Council and the High Representative for Foreign and Security Policy. What changes have the transformation shown led to ? Lisbon Treaty has modified the role and the nature of presidency. However, the preparations for Polish Presidency had started before it was known whether Lisbon Treaty enters into force. How did the changes introduced by Lisbon Treaty affect the Polish Presidency? On the one hand, the trio Presidency ensured a continuation and a greater ability to implement the key proposals. On the other hand, however, did the shift in the direction of Brussels Presidency make the Poles (Polish public opinion) not feel as a real host? Did Lisbon Treaty significantly affect the Presidency of Poland? Did the introduction of the ordinary voting procedure in more than 40 areas, where the Council had not previously had to seek the support of the European Parliament, made the Polish Presidency engage twice as much in the execution of legislative plans?