The article summarizes the views of legal scientists and medical scientists engaged in research in the field of public health. From the standpoint of the theory of medical law, legislative acts are analyzed that have led to significant achievements of the healthcare system of the Federal Republic of Brazil, which is a member of the BRICS and whose experience (legal and organizational) is of interest to specialists in the field of healthcare organization of other member countries of the international organization. The Brazilian health care system is not only in a stable legal field, but also in the first places in the ranking of world health systems. In this regard, experts study the experience of Brazil as a country with vivid geographical, social and economic contrasts, especially in the field of public health. The State pays primary attention to the legal issues of the organization of medical care and places healthcare in the priorities of national policy. A Unified healthcare system has been created and is functioning within the framework of the State healthcare system. Medical services provided in accordance with this system are free of charge and cover all citizens of the country regardless of socioeconomic status and territorial location of residence.