After a long journey of university study, the writing of this work sanctions and represents so many combined efforts and sacrifices made. Certainly, this work on the functioning of the political institutions of the D.R.Congo from 2006 to 2011 is necessary since it is likely to contribute to future scientific research and to bring certain lights on the way in which the political institutions of the country functioned since the entry into force of the constitution of February 18, 2006. On this, we are obliged to express socially our gratitude towards any person having contributed morally, materially and scientifically to the achievement of this work.