Abstract： Objective： To observe the curative effect of the therapy of Xiao'er Kechuanling granules combined with western medicine on cough of phlegm-heat obstructing the lung type in children. Methods：A total of 88 children with cough were divided into the control group and the observation group according to the random number table method，with 44 cases in each group. The control group was treated with cefaclor dry suspension and procaterol hydrochloride oral solution，and the observation group was additionally treated with Xiao'er Kechuanling granules based on the treatment of the western medicine used in the control group. Both groups were treated for 10 days. The disappearance time of cough，expectoration and fever， the symptom scores of phlegm-heat obstructing the lung syndrome before treatment and after 10 days of treatment and the clinical effects after treatment in the two groups were compared. Results： After 10 days of treatment， the total clinical effective rate was 97.73% in the observation group，and was 81.82% in the control group，the difference being significant (P＜0.05). The disappearance time of cough，expectoration and fever in the observation group was shorter than that in the control group(P＜0.01). The scores of cough，expectoration，fever，thirst，red complexion and vexation，scanty dark urine and dry stool in the two groups were decreased when compared with those before treatment(P＜0.01)，and the above scores in the observation group were lower than those in the control group(P＜0.01). Conclusion：The therapy of Xiao'er Kechuanling granules based on the intervention of routine western medicine has a definite effect on cough with phlegm-heat obstructing the lung syndrome in children，which can effectively improve the cough，expectoration and other symptoms，and shorten the treatment time.