Blunt bronchial injuries rarely occur in children. This can be a life threatening condition and respiratory management is important for successful treatment. We present here a pediatric patient who had traumatic bronchial transection with difficult airway management. Surgical treatment was carried out under ventilatory support using extracorporeal membrane oxygenation (ECMO) in the emergency room. During the application of ECMO, systemic heparization was unnecessary and. there were no thrormbotic complications. In conclusion， ventilatory SUpport using ECMO is useful for treating selected patients with blunt trauma regardless of using heparin.