The President is referred to as the “guardian of the constitution”, but modern constitutions do not guarantee its participation in the process of changing the constitution. Sometimes the president can be analyzed with procedures excluded, but it is usually the participant. This activity is associated with the final phase of the procedure for amending the constitution – signing and announcement of the bill amending the Basic Law. Few presidents have the right of veto, to initiate the constitutionality, or carry out an act amending the constitution. Many European countries have the right to entrust the President of the initiatives to amend the Constitution. The objectives of the analysis is to ascertain what are the powers of the president in the procedure of revision of the Constitution. It certainly covers all 33 European republic.