Computed tomography(CT) is a quick and non-invasive method of examining the larynx. CT is helpful in evaluating the laryngeal cartilages and deep spaces of the larynx which is difficult to examine by the laryngoscope. Even is severe injury the larynx can be examined easily and conveniently by CT at the same time as the brain and facial structures without moving the patient, who need lie down and breathe quietly during the study. The authors experienced laryngeal cartilage fractures by blunt trauma(3 cases) and manual strangulation injury(1 case), which were diagnosed with computed tomography.