【Purpose/significance】Excavating the domestic and foreign emergency management topic, analyzing the topic popularity

and evolution. To broaden the background of cross-disciplinary research and promote the construction of emergency management sys⁃tem.【Method/process】WOS and CNKI databases are used as data sources for literature analysis. Based on the LDA model, the topic mining of literature content in different time windows is carried out. Strength Index is used to determine the topic popularity, and DSSM is used to calculate the topic similarity，and further determine the topic evolution path.【Result/conclusion】In terms of topic heat, domestic focuses on the emergency measures management of emergent events, while foreign focuses on the theoretical research and solution of medical emergency management. In terms of topic evolution, the related topics of domestic emergency management are more relevant, while the continuity of foreign emergency management research is stronger.【Innovation/limitation】Scientifically show the evolution path and intensity change trend among topics. From the perspective of visual analysis, the similarities and differences be⁃tween domestic and foreign emergency management studies are more intuitively compared. But quantitative research is relatively insuf⁃ficient.