The patients who comply with the inclusion and exclusion criteria will be enrolled. The estimated recruiting duration is 36 months. Patients with resected mucosal melanoma were randomized into two groups: HDI group (group A, treated with i.v. 15×10\^6U/m\^2/d IFN-a2b on days 1 to 5 each week for 4 weeks, followed by s.c. 9×10\^6U IFN-a2b three times per week for 48 weeks), and chemotherapy group (group B, per os 200 mg/m\^2/d temozolomide on days 1 to 5 plus i.v. 75 mg/m\^2 cisplatin divided into 3 days,which was repeated every 3 weeks for six cycles). All patients will be followed for at least 2 years.