Abstract
In the article, based on historical-legal research of interaction of political parties and the state shows formation and normative consolidation of the constitutional principle of interaction at the present stage, the definition is formulated, also its realization is evaluated. During the research the formal-legal, historical-legal methods are used, as well as the method of interpreting legal norms. The author concludes that the constitutional principle of interaction in the relations of the political parties and the state is conditioned historically, politically and has undergone legal evolution. Its consolidation in the Constitution of the Russian Federation, which has some peculiarities, underlines its fundamental importance for the multiparty system development. The author believes that realization of the principle of interaction reflects the model of constitutional-legal regulation of the status of political parties, which should create preconditions for their free development and unhindered participation in the electoral process. Unfortunately, in Russia at present for many political parties there is no real possibility of interaction, which undoubtedly influences the multiparty system development.