The concept of "Eurasianism" is rooted in the philosophical ideas of the early 20th century, emphasizing the unity of the post-Soviet space and its special, non-Western path of development. Recently, the world order has been put to the test of strength: global challenges put states in front of the need to revise the existing world order, which forms a favorable ground for the implementation of the idea of Eurasianism in a regional perspective. Today, the idea of Eurasianism is institutionalized within the framework of the CIS and the EAEU and is especially relevant in the context of new global challenges (economic instability, changing nature of the international order, epidemiological threat, etc.), which allow us to talk about the emergence of a new world order. The article also examines the development of the Eurasian economy through the prism of the relationship between the processes of globalization and regionalization. Globalization is interpreted as an objective process of internationalization of the world economy, the peculiarities of the involvement of the economies of the Eurasian countries in it are revealed. The subjective side of globalization as a form of economic policy of the developed countries of the world in their own interests and its consequences are shown. The trends of regionalization in the economies of the Eurasian countries are revealed. It is proved that the increasing regionalization objectively leads to a significantly different world order than globalization — to a multipolar world.