Abstract:Abstract: Objective To investigate the diagnostic value of bronchoscopy in children with repeatedly coughing and wheezing. Methods 297 children with recurrent coughing and wheezing were chosed for bronchoscopy. The clinical data were analyzed retrospectively. Results Among the 297 cases, the most common findings were endobronchial inflammation (193 cases), accounting for 65%. There were 23 cases of tracheobronchomalacia accounting for 7.7%. 7 children had bronchial foreign bodies, accounting for 2.4%. 18 children had laryngomalacia, accounting for 6.1%. 13 children had tracheobronchial stenosis, accounting for 4.4%. 17 children had congenital airway malformation, accounting for 5.7%. Pulmonary hemosiderosis in 2 cases, accounting for 0.7%. Tumor in 2 cases, accounting for 0.7%. Immature the left main bronchus in 1 case, accounting for 0.3%. Bronchial diverticulum in 1 case, accounting for 0.3%. 20 children were no markedly abnormal findings for the bronchoscopy, accounting for 6.7%. Conclusion The bronchoscopy is valuable to diagnosis and therapy of diseases with repeatedly coughing and wheezing in children.