Rupture of the main bronchus followed by blunt chest trauma is comparatively very rare. Early recognition of bronchial rupture and emergency thoracostomy and management is essential for reducing of morbidity and mortality and late complications. This case was 11 years old female who was a primary school student. The patient was sustained a crushing injury to her right hemithorax by traffic accident and had been taken emergency closed thoracostomy at her second intercostal space, midclavicular line at emergency room. In the course of the next 2 hours, the girl`s condition remained critical with tension pneumothorax and abnormal arterial blood gas analysis. Induction of anesthesia started 3 hours after the accident. During the general anesthesia, cardiac arrest was occurred and cardiac resuscitation was performed. Right upper lobectomy and end-to-end anastomosis of ruptured right main bronchus was performed. Postoperative course was satisfactory.