The subject of this work is the study of the legal foundations of the activities of the Supreme Council of Magistracy of the Tunisian Republic, which is the highest body of the judicial community of the country. The author dwells on the key normative legal acts regulating the foundations of the legal status of the Supreme Council of Magistracy as a constitutional body, examines its structure, composition and competence. Special attention is paid to the place of the Supreme Council of Magistracy in the political system and the evolution of this body in connection with the crisis of 2010-2011 (the jasmine revolution), reflecting the most difficult compromises between political elites, as well as emerging disputes about competence between different branches of government of the country. During the research, the author used various methods of scientific cognition, both general: analysis, synthesis, logical and structural-functional, and special legal: formal legal, legal modeling method and comparative legal. The novelty of the research lies in the fact that the author for the first time in domestic legal science conducted a comparative study of the legal foundations of the activities of the Supreme Council of Magistracy of the Tunisian Republics, and also considered the evolution of this body in the context of a political crisis. The author comes to the conclusion that the evolution of the legal status of the judicial community of Tunisia is directly related to changes in the political system of this country, is very difficult and is currently far from complete.