Objective : To observe the effect of Bokryungbosim-tang on the cough, cough patients medicine Bokryungbosim-tang. Methods : A clinical observation was done on 30 case of cough patients, treated by Bokryungbosim-tang, who were hospitalized frome January, 1. 1999 to December, 31, 1999 at the department of IKSAN Oriental Medicine Hospital, Wonkwang University and Pak Cheon Soo oriental medical clinic. Results : The effect of treated by Bokryungbosim-tang is that excellent was 19 case(63.33%), good 3 case(10%), fair 3 case(10%) and poor 5 case(16.66%). Conclusions : These results indicate that the effect of Bokryungbosim-tang on the cough is excellent.