As one of the largest organs of the human body, the skin itself occurs various types of skin diseases, and many other diseases that occur in human organs can also be characterized on the skin. In the early stages of melanoma, there are no obvious symptoms, and it is difficult to classify with the nakes eye. For the dermatoscopy images, the contrast between the lesion region and the normal is low, and the edges are unclear. The classification can also easily affected by interference information such as hair and abnormal image colors. Althougn some important developments already are obtained, the melanoma still faces some important scientific issues. In response to these issues, some interested efforts are needed to conduct on color correction, hair removal, interval segmentation, and image registration.