The article provides a comparative analysis of the evolution features of the formation and development of representational bodies through the institution of elections, which is one of the most important and urgent issues in the context of democratization in modern Kazakhstan. The main purpose of the scientific article is to analyze the elections in the formation of representative authority in Kazakhstan from the standpoint of political science. This is related to the fact that the electoral process in the country is developing in accordance with the democratic regime, undergoing legislative reforms and difficulties in improving. Thus, the article examines the issues of the evolutionary development of elections by the methods of comparative analysis, cross-temporal comparison, and identifies the features of development. Also, the structure of a representative government formed on the basis of elections in independent Kazakhstan, the peculiarities of the participation of the electorate in elections, the proportion of women in the Mazhilis, the number of parties, and the average age were compared. Elections are one of the main indicators in the formation of representative power.