Like many European countries, most French-speaking black African states have endorsed the worldwide concept of local autonomy, through changes to their fundamental Laws. For its part, the Cameroonian Constitution Act of 18 January 1996 clearly dedicated territorial decentralization as the main mode of management of the Republic. Y are announced, all the great fundamental principles underlying the territorial decentralization, notably the legal personality of public law of local councils, self-government by elected councils, the administrative and financial autonomy for the management of regional and local interests.The constitutional principle of autonomy, as the case declined in self-administration and / or financial buzzword, but surprisingly overlooked by the literature and subject of intense controversy about its implementation, establishes the relevance of this study. The ambition is to clear a juridical concept from the expressions of administrative and financial autonomy, to endow the different interested actors, notably the unitary state Cameroon, with measuring instruments that could allow an effective implementation of strength of local autonomy subject to so many passions in political rhetoric from all sides.