OBJECTIVE: To find historical relics of propagation of Chengjiang acupuncture and moxibustion school of thought abroad in which Cheng Dan' an is representative.
METHODS: Interview Xing Jingqing, Zhao Zhixing, Qiu Rongqing, students of Ph.D. Su Tianyou in Malaysia, who is the third generation of students of Cheng Dan' an, and collect historical materials about practicing medicine and teaching of Ph.D. Su abroad.
RESULTS: Su Tianyou is a student of Zeng Tianzhi, a brilliant disciple of Cheng Dan' an. He practiced medicine in 1939 and established Acupuncture and Moxibustion Medical College of Hong Kong in 1940, and he went to 13 countries and districts such as Asia, America and so on for practicing medicine, running schools. He is respectfully called "father of American acupuncture and moxibustion".
CONCLUSION: Ph.D. Su propagated Chinese medicine abroad, with outstanding achievement in education of medical sciences.