〔Abstract〕 Objective To analyze the research literature of pulse diagnosis in the past 70 years, analyze and summarize its research track and trend. Methods Using natural language processing related technologies, gephi and echarts, the titles and keywords of the literature were mined and analyzed by drawing Theme River map, term co-occurrence network map and emergence detection algorithm. Results The overall study of pulse diagnosis can be divided into four themes: objectification of pulse diagnosis, pulse diagnosis knowledge in classic ancient books, pulse diagnosis knowledge in clinical cases and pulse diagnosis knowledge of famous veteran doctors of traditional Chinese medicine (TCM); The recent hot spots were the reappearance of Renying Cunkou pulse method in Neijing, Li Shimao's experience of "flat pulse syndrome differentiation" and systematic syndrome differentiation pulse. Conclusion The field of pulse diagnosis closely focuses on the two main lines of inheritance and modernization, but pays too much attention to the inheritance and research of classical theories, rarely innovates, and lacks the research perspectives of evidence-based methods and modernization.