objective:to study the effect of the DJL1200 dual wavelength fiber semiconductor laser treatment of bronchopneumo-nia, to provide guidance for clinical treatment.Methods:to choose the case of pediatric of Woman and Children Hosipital of Wu zhou City in January 2011- December 2012. 100 cases of children with bronchial pneumonia in hospital for treatment group, and 50 cases of children with bronchial pneumonia in hospital for control group in the same period . Control group to be given conventional treatment;treatment group to be given double wavelength optical semiconductor laser treatment on the basis of the control group.Compare the curative effect of two groups of children.Results: cough, asthma, lung rale disappearing time and hospitalization days of the treatment group were less than the control group, The efficiency and total effective rate of the treatment group was higher than the control group, the differences were significant (P<0.001).Conclusion:laser treatment can effectively promote pulmonary inflammation to be absorbed, laser treatment can shorten the hospitalization days, can be used as the well auxiliary treatment of bronchial pneumonia. Laser therapy is worthy of clinical promotion.