This article shows Russian point of view on the evolution of Eurasian integration as related to plans to create a Eurasian economic entity based on the EurAsEC model that began with the creation of the Customs Union and Common Economic Space. The article analyzes the legal theory of Russian authors of EurAsEC, based on a review of this integration and the legal documents of this process. The article details the institutional mechanism of the functioning of Eurasian integration and its legal characteristics, and gives a short legal history. The article shows that integration of post-Soviet countries based on EurAsEC is more successful than integration based on the CIS model despite the lack of supranational power of the institutions of EurAsEC.