〔Abstract〕 Objective To analyze and study the clinical effect of ultra-short-wave adjuvant treatment of pediatric bronchial pneumonia. Methods 100 children with bronchial pneumonia treated from January 2018 between People's Hospital and December 20182019 of Nanhai Economic Development Zone were selected as the study subjects, and all patients were divided into two groups: control and observation group according to the digital table method.Among them, the control group used intravenous antibacterial drugs for anti-infection, phlegm reduction and atomization inhalation. The observation group implemented ultra-short wave treatment on the basis of the control group, and analyzed and compared the clinical treatment effect, cough disappearance time, wet silo disappearance time and hospitalization time of the two groups. Results The cough disappearance, wet noise and hospital stay in the observation group were statistically significant (P < 0.05), the clinical treatment was more efficient than the control group, and the difference was statistically significant (P < 0.05). Conclusion The effective application of ultra-short-wave adjuvant therapy in the treatment of pediatric bronchiolpneumonia can improve the treatment effect and reduce the hospitalization time of patients.