He article notes that China's mask diplomacy in Southeast Asia is an integral part of its foreign policy aimed at strengthening its positions in the region by increasing the level of confidence. By providing assistance to Southeast Asian countries in the fight against COVID-19, China hopes to improve its image of a “benevolent” neighbor in the region. At the same time, the priority was given to those countries of Southeast Asia with which the closest relations have developed and which are participating in the Belt and Road Initiative. In the development of the achieved success in mask diplomacy, China is moving to the implementation of the so-called vaccine diplomacy in Southeast Asia. However, despite the currently pronounced humanitarian orientation of China's foreign policy in Southeast Asia, the continuing territorial conflict in the South China Sea plays against its positive image in the region as “generous sponsor”. Time will tell whether mask diplomacy will help China gain an edge in the competition for influence in the region. But one thing is clear - China is acting decisively and does not miss a single chance to provide support for the countries of Southeast Asia in the competition with the United States.