This paper is the first to consider the electoral system regulation at a constitutional level. The author proposes a thesis stating that constitutionalization of an electoral system is one of the measures that influence the quality of electoral governance and ensure electoral fairness. A set of indicators helping to identify the level of constitutionalization of electoral system is suggested. The primary effects of establishing electoral norms at a constitutional level are the stabilization of electoral legislation, protection of electoral norms from being altered to serve vested interests, hierarchization of electoral norms and structuration of electoral legislation. These effects are manifest under the conditions of a rigid constitution. The study reveals what aspects of the electoral system are typically enshrined in the constitutions of the world. The study revealed that the Constitution of the Russian Federation has an unrivalled disregard for election-related issues.