The article examines the process of regional cooperation in Northeast Asia and the role of Mongolia in this process. For Mongolia, which is the least developed country in the region and has no access to the sea, it is vital to determine its course of interaction in the processes of economic integration, in various forms of bilateral and multilateral cooperation with the countries of the NEA sub-region, using primarily its resource capabilities. Keywords: Mongolia, regional cooperation, Northeast Asia, globalization, integration, natural resources, infrastructure. In the context of the globalized world economy, the trend towards regional economic cooperation is becoming more pronounced. In the new century, Asia is gradually becoming the center of global economic development. The focus of this economic development has become East Asia, and the" hot spot " of economic growth in East Asia, in turn, is Northeast Asia (NEA), with the main centers in China, Japan and the Republic of Korea. The economies of most Northeast Asian countries are characterized by high potential and inexhaustible opportunities for cooperation, so strengthening regional economic cooperation between the countries of Northeast Asia is not only an internal necessity and a subjective desire of each individual country in this region to achieve a high level of economic development, but also an inevitable trend in the development of the world economy. Northeast Asia is generally considered to include the northeastern provinces of China, the Far Eastern region of Russia, Japan, the Democratic People's Republic of Korea (DPRK), the Republic of Korea (ROK), and Mongolia. The NEA sub-region is characterized by an extensive market and strong potential for regional economic development. China, Japan, and the Republic of Korea are the three main economic pillars of Northeast Asia [Chuan Junzao, 2006, p.141]. Japan and the Republic of Korea have sufficient capital and high technical capacity, but their natural a ... Read more