In the presented paper, comparative analysis of the main macroeconomic indicators and indicators of foreign economic activity of the EAEU countries and the CIS countries that are not members of the Union is carried out. The study is based on hypothesis that integration processes in the CIS space have promoted the stabilization of transformation processes, preservation of old and development of new trade and economic relations between member countries of the Union. The research has shown that the EAEU members received additional advantages for national economies development over other CIS countries and have better indicators of economic development in general. It was emphasized that, in contrast to some CIS countries that are not members of the EAEU, negative macroeconomic manifestations are noted in a less degree in these countries, and the growth rates of main macroeconomic indicators have a positive and growing dynamics.