Now the concept of “soft power” introduced by the American political scientist Joseph Nye Jr., is of particular interest in the theory of international relations. Among the Asian countries special attention paid to China, which currently has not only extensive economic and political resources, but also sources of non-power influence. In the article, the authors explore a concept as “Buddhist diplomacy” and its role in China's foreign policy activities. It also examined the historical formation of Buddhism and its development as a resource of “soft power” by way of the one of state Chinese religions that is part of the syncretic complex, along with Confucianism and Taoism, in different periods of Chinese civilization, from the pre-imperial period to the modern framework. In this study were examined the views of Russian and foreign experts on the directions and spheres of the definition of the “Buddhism diplomacy” and the peculiarities of its implementation by the Chinese government. This research based on the using on using the historical approach and general scientific methods, such as analysis, synthesis, deduction, etc. In the article, the authors revealed the current state of religion on the example of Buddhism in China's foreign policy strategy both on the world stage and at the regional level and main aspects within which Chinese Buddhist diplomacy is developing.