This study has been carried out to investigate the cause, symptom and treatment of Gi-Su(氣嗽) by referring to 20 literatures. The results were as follows; 1. The factors causing Gi-Su(氣嗽) divided into 3 groups. The 1st outer factors are mental element, 2nd spleen week 3rd dam(痰). 2. The symptom of Gi-Su(氣嗽) is as follows. stimulus feeling in throat, cough, pain of sub-ribs, bad feeling, retching, vomiting, unfair, fatigue, worn, diarrhea, dark tongue, makhyun(脈弦). 3. The treatment of Gi-Su(氣嗽) is as follows. gaewulhanggi(關鬱行氣), egichungpae(利膈淸肺), hwadam(化痰), soganhaeWul(疏肝解鬱), hanggidoche(行氣導滯), sangyuljedam(散結除痰) 4. The drugs of Gi-Su(氣嗽) is as follows. chilgitang(七氣湯), gamisachiltang(加味四七湯), sojaganggitang(蘇子降氣湯), banhahubaktang(半夏厚朴湯).