Political party - a necessary element of the representative system. By means of political party citizens put forward the requirements to the state and get from it support in the decision of any social and economic and political questions. To a problem of political parties, their roles in political system addressed liberal thinkers of a boundary XIX-XX centuries - B.N. Chicherin, Y.S. Gambarov, N.M. Korkunov, etc. B.N. Chicherin has revealed social bases, conditions of occurrence of political parties, types of political parties. Y.S. Gambarov has opened the basic characteristics of parties, interrelation of party system and parliamentarism. Influence of an electoral system on party and party system on character representation was found out by N.M. Korkunov. The conclusion of Russian liberals of the end of XIX century that it is not necessary to limit growth of number of political parties is actual, to borrow another#s experience as it will lead to tyranny of political authority and tearing away of parties from

a society.