The purpose of the article is to comprehensively analyze the definition “The Law of the Eurasian Economic Union” and determine its place in the international law system. Research methods: historical-legal, axiological, functional and contextual approaches of comparative legal method, formal-legal method. The authors consider the genesis of Eurasianism as a historical phenomenon and philosophical direction, analyze the law-forming social factors that form the basis for the Eurasian law development. They conclude that Eurasian integration has traditionally been free and legal and the system of Eurasian law is based on the postulates of both Western and Eastern influences. These are the rule of law, collectivism and the priority of natural relations within the group. The law-forming factors that influenced the creation of the EAEU and its law are peculiar and fundamentally different from the factors and prerequisites characteristic of other integration economic formations. The EAEU was created by the states that had previously been part of a single state; its statutory documents, along with taking into account the peculiarities of European law, also took into account the confessional and civilizational identity of Eurasianism. Formally, at this stage of Eurasian integration, the EAEU law is a sub-branch of international economic law and represents a system of principles and norms in the sphere of international communication of Eurasian states, created to regulate public relations on the creation (liquidation) of regional associations, cooperation of a regional association with other international organizations, its participants and structures in the spheres established by EAEU statutes.