Frequent highway-floods seriously affected the smooth flow of roads and social and economic development, in order to promote the domestic highway-flood discipline, there is further development in theory and practice, using CiteSpace V.5.3.R4 to map the knowledge map of highway-flood disaster research in China, comprehensively analyzed the research dynamics of this field from 1987 to 2019, identified the time distribution characteristics of the number of documents issued by the discipline, and completed the co-occurrence analysis of authors, organizations and keywords. And emergent analysis of the frontiers of phased research. The results show: Academic journals accounted for 64.84% of the total number of papers, master's papers accounted for 27.65%, doctoral dissertations and conference papers accounted for 4.93% and 2.58% respectively, and the research results showed a trend of volatility growth with time; The subject research mainly includes Changan University, Chengdu Institute of Mountain Disasters of Chinese Academy of Sciences and Chongqing Jiaotong University.The relationship between the teams is weak, the academic exchange needs to be strengthened; the academic links between the main organizations in the southwestern region are closer than those in the northwestern region, and different regional characteristics have not yet formed a broad academic consensus in China; The development history of domestic highway-flood research is divided into four stages: exploration, start-up, prosperity and stability. The research results can provide reference for the follow-up theoretical research and practical exploration of domestic highway-floods.