The following results were obtained according to these fact which is considered peviodically and bibliographically ; 1. The cause of bleeding of cough was Oegampunghan(外感風寒), Pyosaoesok(表邪外束), Chohwasangpye(燥火傷肺) in external cause, Eumhuhwadong(陰虛火動), Sinhu(腎虛), Hyulhu(血虛), Damhwajukyul(痰火積熱), Pyesuyul(肺受熱) ect. in internal cause. 2. The symptoms of bleeding of cough because of external cause was similar to generally cold symptom, because of internal cause were similar to Yeumhuhwadong(陰虛火動) and generanl Huyul(虛熱) symptom. 3. The treatment of external were Mahwangtang, Soshihotang, Sabaeksan ect. internal were Samultang, Yookmijihwangtang, Jaeumganghwatang, Gesosan ect.