Objective：To observe the clinical effect of syndrome differentiation of modified Maxingshigan tang for children with bronchopneumonia.M e th o d s：Divided 180 cases of children with bronchopneumonia into the control group and the treatment group randomly， 90 cases in each group.The control group was given routine western treatment， while the treatment group was given syndrome differentiation of modified Maxingshigan tang for treatment.After ten days of treatment，compared the clinical effect of two groups，the disappearance time of Chinese medicine symptoms of fever，cough，rale and wheezing，the incidence of adverse reactions and the recurrence rate of six-month follow-up in the two groups.Results：After treatment，the total effective rate was 96.67%in the treatment group and 82.22%in the control group，the difference being significant(P ＜ 0.05).The disappearance time of fever，cough，rale and wheezing in the treatment group was shorter than that in the control group(P＜0.05).The incidence of adverse reactions was 2.22%and the recurrence rate of six-month follow-up was 1.11%in the treatment group，while the incidence of adverse reactions was 16.67%and the recurrence rate of six-month follow-up was 10.00%in the control group，the differences all being significant(P ＜ 0.05).Conclusion：The therapy of syndrome differentiation of modified Maxingshigan tang has significant effect in treating children with bronchopneumonia，which can effectively relieve the symptoms of children and reduce the adverse reactions and the recurrence with high safety.It is worthy of promotion and application in clinical practice.