This report studies the history of diagnostic development of Myeong Dynasty(明代). This period is the success of Keum-Won Dynasty(金元代) when the special development of medicin was taken, and is the origin of the developement of medicine of Cheong Dynasty(淸代). The conclusion is like this. The palpitation was developed to be papular, to illustrate and to be simple. The development of seeing diagnostics of Myeong Dynasty was characterized the entrance of special book of seeing diagnostics, the study of finger print of child and the development of seeing tongue diagnostics. In Myeong Dynasty, discrimination of smell(辨氣) theory was developed with the development of fever school. The development of discrimination of symptoms of Myeong Dynasty was finished in every realms, specially in discrimination of symptoms of fever.