Objective To Study and investigate the curative effect and security using nebulizer inhalation of Andrographolide Sulfonate to children's bronchopneumonia. Methods From July,2012 to June, 2014, we chose 128 children who had been diagnosed as bronchopneumonia by our hospital as our research subjects, and divided them into the contrast group and the observation group randomly with 64 children each. The both groups were all treated by using the methods of Antipyretic,anti-inflammatory,antitussive,antiasthmatic,anti-viral infection, treated by using erythromycin, penicillin and cefotaxime in the contrast group,treated the observation group by using Xiyanpin injection by nebulizer inhalation, of cause these two treatment were all on the basis of the conventional treatment. After treatment, we recorded the exact time of when the fever was gone, the disappearing time of pulmonary rales and their cough, the total effective rate and the time of being in hospital of the two groups. Results The time of all the observation group's symptom disappearing and being in hospital was obviously shorter than that of the contrast group after treatment. The difference between both groups was statistically significant(P<0.05). The total effective rate for the observation group was 96.88%, and it's higher than the contrast groups',which was 85.94%. The difference was statistically significant(P<0.05)too. Conclusion Using Xiyanpin injection by nebulizer inhalation for children's bronchopneumonia could effectively relieve the children's clinical symptom. It is worth popularizing for its good clinic medical value.