Malignant melanoma is a rare disease. There was high incidence of metastais to gastrointestinal tract hut rarely detected before death. Here we report a 78 year old male farmer, he visited our hospital with chief complaint of intermittent epigastralgia for 20 years with aggravation in recent one month. There was body weight loss 4 kg in one month and hemoptysis 10 days before admission. Panendoscopy revealed multiple ulcers in the body and fundus of stomach and 2 ulcers in posterior wall of duodenal bulb. They were stained by dark pigmentation grossly. Biopsy was done and proved to be a metastatic melanoma. However patient was soon discharged because of economic problem. The primary site of the melanoma was not known. The patient died of respiratory failure 2 weeks after discharge.