Abstract
<jats:p>Eurasian ideas remain vital in both the doctrine and practice of international law, as they correspond to the trend toward multipolarity in international relations, which, in the Eurasian space, has been institutionalized primarily in major regional international organizations such as the Eurasian Economic Union and the Shanghai Cooperation Organization. Currently, the EAEU and SCO, as driving forces of Eurasian regionalism, have vary-ing levels of institutionalization and cooperation and differ in their goals, objectives, and competencies. At the same time, these organizations undoubtedly have common ground and potential for developing cooperation. The existing formats for such interaction – joint reports and meetings – are clearly not as effective as objective reality demands. It is important to note the difference between cooperation between member states and coop-eration between the organizations themselves. This work aims to analyze promising areas and mechanisms of cooperation between the EAEU and the SCO and identify the potential for their competence-based interaction, as well as to develop proposals for the most optimal international legal framework for such cooperation.</jats:p>