To investigate the cause of death of the identified person, the causation between injury and disease was analyzed. This appraisal uses the forensic pathology examination method, through carries on the autopsy, the pathology examination to the patient, unifies the medical record data to carry on. Through identification, it is considered that the identified person died of severe craniocerebral injury, thoracolumbar vertebra fracture and secondary multiple organ failure due to traffic accident.