Skin grafting is to remove a part of skin from one's own healthy skin (donor area) and cover the area (recipient area) where the scar has been removed. The donor skin needs a new blood supply from the recipient to survive. Under normal circumstances, there is a great chance of successful autologous skin transplantation, but there is also the possibility that the skin graft will not survive. In addition, all skin grafts will leave scars on the donor site. The surface skin flap can be cut by peeling blade method, hob method and roller peeling machine method. Before skin grafting, thoroughly expand the wound and trim the granulation to make it smooth. After expanding the wound, wash the wound repeatedly with sterile physiological saline (which may contain corresponding antibiotics), hydrogen peroxide and iodophor. The wound completely stopped bleeding. According to the condition of the wound, the skin graft should cover the wound with proper tension and sew the edge of the skin graft with the edge of the wound. In view of the thin skin graft, it is not advisable to sew too much to avoid tearing the skin graft. Before dressing, flush the hematocele under the flap with normal saline. Cover the skin of the affected area with sterile oil gauze, cover the oil gauze with multi-layer mesh gauze, and apply pressure with bandage. Or when sewing the wound edge and the skin edge, keep the long lines, cover the skin flap with a layer of sterile oil gauze after sewing, put a proper amount of mesh gauze on the oil gauze, divide the long lines into arrays, and then bind them relatively. Jiaxing area can go to Xin 'an International Hospital to ask, where there is a plastic surgery department.