Objective To compare the efficacy of modified Maxing Shigan Decoction according to symptoms for children with bronchial pneumonia.Methods Totally 37 children with bronchial pneumonia were randomized into the modified dosage（ dosage modified according to symptoms） group and fixed dosage（ dosage not modified according to symptoms） group

with 18 and 19 in each.Both groups were given basic western medication.The fixed dosage group was added with Maxing Shigan Decoction one dose daily.Based on the body temperature of patients

the modified dosage group was added with 1

1.5

2

2.5 or 3 times daily volume of Maxing Shigan Decoction as in the fixed dosage group.The complete cooling time

recovery time

recovery rate and recovery time of TCM individual symptom

and incidence of adverse reactions were recorded.The clinical efficacy and TCM syndrome efficacy were evaluated after treatment.Results The total effective rate of the modified dosage group and fixed dosage group was 100% and 94.73% respectively

with no significant difference between groups（ P > 0.05）.The total effective rate of TCM syndromes in the modified dosage group and fixed dosage group was 88.89% and 15.79% respectively

with a significant difference between groups（ P < 0.01）.The complete cooling time

cough time and expectoration time in the modified dosage group was significantly shorter than those in the fixed dosage group（ P < 0.05）.The recovery rates of cough and expectoration in the modified dosage group were significantly higher than those in the fixed dosage group（ P < 0.05）.There was no adverse reaction in both groups.Conclusion Maxing Shigan Decoction is effective for bronchial pneumonia in children

especially modifying dosage according to symptoms with a shorter duration of fever

cough and expectoration.