The analysis of the France-UN system relations stresses the importance of the Organization as a vector of influence and power. For France, it is a useful tool for its international policy in the field of international security, and for the French language. There are three axes of analysis. First, presence and participation of France in the political, diplomatic and administrative apparatus of the Organization ; at the same time, financing the UN activities is important. Second, the permanent membership of the UNSC French status is outstanding, in the light of its reform process – enlargement, right of veto ; the participation to the PCKOs is also a significant factor. Third, the promotion of the French language and of Francophony is a considerable stake regarding the concepts of multilinguism and even of multilateralism.