Skin cancer can be potentially deadly, but most skin cancers fall into the category of those that are more treatable and not life-threatening in the short term. Skin cancer is categorized into basal cell carcinoma, squamous skin cancer and malignant melanoma, which are the most common. Generally speaking, basal cell carcinoma of the skin can be cured by surgery, and the effect is very good. There is also squamous skin cancer, which is mainly treated by extended surgery, together with regional lymph node dissection, and radiotherapy and other comprehensive treatments are also needed after surgery. Skin malignant melanoma, this treatment effect is relatively difficult, it is easy to recurrence and metastasis at an early stage. However, early detection and treatment can prolong the survival period. Generally speaking, after surgery for malignant melanoma, the survival period can be prolonged with bioimmunotherapy or targeted drug therapy.