Abstract: Following the outbreak of the COVID19 epidemic in China，the party and government mobilized the whole society to fight against the epidemic，and achieved major phase victory. Epidemic prevention researches are continuously and deeply concerned by the international academic community. Using documents datum from Web of Science Core Collection as sample data and mapping visualized knowledge domains by Scientometrics，this paper analyses the spatiotemporal distribution，foundation，knowledge flow of researches on international epidemic prevention，further grasps research trends to provide scientific references for fighting against COVID19.

Key words: mapping knowledge domains, epidemic prevention, information visualization, COVID19, public health emergency management

摘要： 继我国新冠肺炎疫情暴发以来，党和政府动员全社会全力抗击疫情，并取得了重大阶段性胜利。防疫研究是国际学术界持续深入关注的领域，利用WOS核心数据库文献题录数据，借助科学计量软件绘制知识图谱，分析国际防疫研究的时空分布、知识基础、知识流动等，梳理防疫研究的总体态势，以期为新冠肺炎疫情防控提供科学的参考依据。

关键词: 知识图谱, 防疫, 信息可视化, 新冠肺炎, 公共卫生应急管理