The book named Da Chaoxianyi Wen (Answer to the Questions of a Korean Physician), written in 1624, recorded the written answers of Wang Yinglin, a Chinese official in the Ming dynasty, to the questions of Yin Zhiwei, a Korean official physician. The 24 A&Qs concerned about the therapy of ordinary diseases, channels and the theories of TCM, etc. The study of this book could not only clarify various questions on the exchanges between Wang and Yin, but also learn more information on the development of Korean medicine at that time.