The institutional dimension of political competition, a factor determining the system of links between political actors, is the starting point to regard the elections as a mechanism generating patterns of linkages between the political system, the political parties and the voters. The paper examines the impact of selected functions of the parliamentary elections in Poland on political representation, on the selection of power elite and the election of the governing majority. We will focus on presenting the dynamics of these functions after 1989, particularly in the context of the change in party system.