The article reveals the author's vision of the direct participation of the people in the reform of constitutions in the CIS countries. The issue of the correlation between the participation of the people in the reform of constitutions and the exercise of constituent power by the people is raised. As an example, the legal mechanisms of constitutional reforms in the CIS countries are studied from the point of view of direct participation of citizens in initiating constitutional reform and making decisions on reforming the constitution. The features and problems of the existing legal mechanism of constitutional reform in the Russian Federation from the point of view of people's participation are considered. The prospects for the emergence of new forms of direct participation of the people in the reform of the Russian Constitution are outlined. The article describes the problems of understanding the all-Russian vote in the reform of the Constitution of the Russian Federation, highlights two approaches to this extraordinary phenomenon in the doctrine.