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.