We report on the usefulness and safety of thoracodrainage for patients with traumatic hemopneumothorax who had fractures of the extremities and trunk. Traffic accident was the most common cause of hemopneumothorax. 20 in 47 patients (42.6%) had multiple bone fractures, and so orthopedic operations were conducted on 23 patients (48.9%). A thoracic drain was inserted for 42 patients (89.3%) including 1 patient who underwent thoracodrainage in both lungs. The outcome of all the patients was satisfactory.