The purpose of this research is to define the concept of "constitutional regulation mechanism." The definition of the concept of "constitutional regulation mechanism" will give jurists and legislators a theoretical framework for developing legal sciences, such as the constitutional law and the theory of state and law. The research investigated the main attributes of the constitutional regulation mechanism. The methodological framework of the research included the systems, historical-legal, and axiological approaches, classification, and systems-structural analysis.The concept of "constitutional regulation mechanism" is defined as a set (system) of constitutional means of influencing objects of constitutional regulation for the purpose of ordering, normal functioning, development and protection of fundamental social relations in accordance with the constitutionally set goals of the society and the state.The conclusions of this research may be used for the theoretical development of constitutional law.