Abstract
Background At the end of 2019, the outbreak of coronavirus disease (COVID-19) severely damaged and endangered people’s lives. Risk communication plays an important role in the response to COVID-19 successfully. Therefore, a comprehensive analysis of risk communication research is necessary, which can understand current research hotspots and reveal new trends.Methods In this study, international articles come from Web of science database (3983), Chinese articles come from the China National Knowledge Infrastructure database (1134), Bibliometric and mapping knowledge domain analysis were used for cooperation network, co-word co-occurrence network and burst detection analysis.Results The first article in this field was published by western scholars earlier, while the first Chinese article in 2002. Research institutions mainly come from universities. The United States play a key role in this field. Chinese scholars had a closer cooperation network, but there was less cooperation among domestic institutions. Risk perception, public trust, risk management, and risk information dissemination had always been the research hot-spots in this academic direction. Trust, sentiment research, and public risk events were essential directions for future. There are 25 burst words for international articles, while 11 burst words for Chinese articles from 2000–2020.Conclusions In summary, both domestic and international researchers are concerned about risk communication, risk perception, trust, and risk information. International scholars begin to take cares with ecological and technological risks research, radiating many areas of social risk. Compared with international research on risk communication more systematic and comprehensive, Chinese scholars takes SARS as the research background and reviewing foreign knowledge as the research starting point. With purpose of practical and applied research based on a public emergency, the risk-communication research lacks continuity in Chinese academy in the past years.