In the context of traditional media, the media can dominate the topic and composition of public opinion, but in the context of the convergence of online media, the dominance of public opinion has gradually evolved from the direction of the coexistence of single items and pluralism, especially from the international level. In other words, the construction of the comprehensive strategic writing partnership between China and Russia in the new era has given a new orientation and connotation to the bilateral relations and cooperation in the new era. In the face of an increasingly complex international public opinion environment, media cooperation between China and Russia is crucial. Therefore, based on an in-depth analysis of the construction of the discourse power of international public opinion under the dual influence of the ecological environment and the network environment, the construction of the discourse power of international public opinion is discussed from the aspects of the construction of discourse objects, the construction of the main body, and the enrichment of the content of international communication.

With the rapid development of network technology, the rapid rise of network public diplomacy with social media has gradually become an important form for governments, which carry out public diplomacy to target countries. Under the background of the continuous and in-depth development of China and Russia comprehensive strategic partnership, the Russian Embassy in China has launched a series of new media public diplomacy activities through the WeChat public account. The theory of international communication and public diplomacy adopted to study the offi cial WeChat public number of the Russian Embassy in China specifi cally by new media. This paper analyzes the topic distribution, dissemination content and dissemination eff ect of the public article, trying to observe the use of new media in China. The strategy of diplomacy is to conduct new media public diplomacy for other countries as a reference.