Malignant melanoma and malignant tumors of skin pigment cells, the treatment methods mainly include the following three kinds: 1, surgical excision: surgical methods are generally divided into two kinds, one is the ordinary enlarged excision; the other is the microsurgical method, which belongs to the main surgical methods; 2, immunotherapy: infusion of cytokines to stimulate the body’s immunity to malignant tumors, causing the destructive power to malignant tumor cells; 3, targeted therapy of molecules: that is, targeted therapy for some targeted molecular mutations.