There are more than seven thousand of unique languages nowadays, that reflect the uniqueness of the living conditions, the worldview and cultural traditions of different peoples. According to UNESCO, 75 languages in Europe and Asia Minor and about 115 languages in the United States over the past five centuries have been lost. The regional or minority languages are part of the national heritage and play leading role in the process of national identity as bearers and guarantors of national culture and national identity, that is why the value of regional languages is constantly increasing. However, the danger of the growth of nationalism and separatism makes politicians wary of measures to protect the national languages. The article deals with the political debate in France around the ratification of the European Charter for Regional or Minority Languages, adopted by the Council of Europe on 25 June 1992, which purpose was to protect the historical regional languages of the EU, some of which are in danger of eventual extinction.. The author provides analysis of the historical preconditions of the current debate as well as of the stance taken by the French leadership on this issue. The study is based on a set of scientific methods and approaches - the principle of scientific objectivity and system of historical research. The main methods are problematic and historical-comparative analysis, classification and comparison of the political and historical concepts. Modern France de jure firmly follows linguistic traditions laid down by previous regimes, as defined in its constitution as the principles of the indivisibility of the Republic and the unity of the French people. According to Article 2 of the Constitution of the Fifth Republic, French language is the only official. However, in addition to the French 75 languages are being spoken all over the Overseas Departments and Territories of France, including 24 languages of the indigenous population of the European part of France, and the languages of immigrants. Despite the fact that the ratification of the Charter serve certain political figures, the Conseil d'Etat, the highest judicial authority in administrative cases, and later the Constitutional Council refused to ratify the Charter, due to the fact that the provisions of the Charter are contrary to the Constitution. The question of amending the Constitution of France is facing fierce debate and remains unresolved for nearly a decade. The political problem is the impact of the application of the Charter, by the fact that at all times promoting one language at the expense of others become a catalyst for powerful and very dangerous social and political processes.