The article analyzes the theoretical and applied aspects of the issue of regional integration in political science. The authors made an attempt to analyze the nature and characteristics of the integration process in the Eurasian region. Various scientific points of view on the problem of integration are shown. The article compares the approaches to the study of regional integration presented in the article. In today's world. At the same time, the authors show possible prospects and further development of Eurasian integration in the context of the participation of the Republic of Kazakhstan.