Abstract: Academic discourse right is a representative of the national cultural soft power, and it is important to reveal the thematic structure and development of its research in order to enhance China's international academic discourse status and strengthen China's international discourse power. Based on the articles related to the discourse power in CNKI, the paper analyzes the research situation of Chinese academic discourse power by means of complex network calculation, topic structure discovery and scientific knowledge mapping. It is found that the research on academic discourse in China has developed steadily during 2001-2020, and the research topics can be divided into six subfields: international discourse is the core topic of current research; the discourse system with Chinese characteristics, as the research center of gravity of academic discourse, has the role of controlling the overall situation and outlining; discipline and academic construction topics such as discipline construction, journal construction, and university construction are the important contents of academic discourse and play the role of mainstay.