Angiosarcoma is rare disease not only in Korea but throughout the world; it is all the more so on the skin. We made an observation on a case of angiosarcoma on the scalp of a 57 year-old man. Noteworthy in this case are: (1) the patient was suffered from a head trauma 6 years prior to onset of the disease, (2) the progress of the disease showed an extreme rapidity accompanied by severe headache intolerable by any medication, (3) no effect was resulted from X-ray irradiation, and (4) the patient survived for 7 months with the disease.