Abstract: The article studies the issues of strategic partnership within the Russia-China-USA triangle in the context of the existing security threats in Asia Pacific and the peculiarities of the counties’ diplomacy. The research object is the foreign policy of the regional great powers: the USA, China and Russia. The research subject is the peculiarities of the current foreign policy and diplomacy of these countries in Asia Pacific. The authors study the character of the foreign policy of Russia, China and the USA, and define the forthcoming changes on the global stage. special attention is given to such issues as the “public diplomacy” of the USA, the impact of “soft power”, Russia’s diplomacy in response to the sanctions, imposed by the USA and the EU, etc. The authors note the peculiarities of development of China’s diplomacy and the country’s attitude towards the new American president. The authors conclude about the forthcoming changes of the policy and the interests of the countries in this region. The authors’ approach consists in the system analysis of political events and the results of political actions of the parties concerned, aimed at analyzing the character of the foreign policies of Russia, China and the USA within the mentioned threats and defining the prospects of relations strengthening within the Russia-China-USA triangle in the context of political changes (first of all, in the USA), the “public diplomacy”, “soft power” and other factors. The authors conclude that the current situation in Asia Pacific is characterized by the struggle for control over geopolitical space between the USA, Russia and China with possible involvement of small and medium states in three “cold” conflicts, very serious from the positon of military potentials of the opposing parties. The study can serve as a basis for the future comparative analysis with account for the common features of Asia Pacific strategies of the USA, China and Russia.