Deep burn wounds mainly include Ⅲ degree burns and deep Ⅱ degree burns. Ⅲ burns refer to the full layer of skin damage, local manifestation of pale, yellow-brown, scorched yellow, skin like leather, little exudation, no pain; larger area of Ⅲ burns wounds mostly can not heal by themselves, should be early surgical skin implants or flap transplantation. Deep degree II burns are those with most of the skin damaged and only the epithelial cells of hair follicles and sweat glands remain, which are characterized by local swelling, occasional small blisters, red and white at the base of the wound, and reduced nociception. In deep II degree burn wounds, although there are residual skin attachment tissues such as hair follicles and sweat glands, the wounds may heal on their own, but the healing time is long and serious scar growth is often formed after healing, which affects the appearance and function; during the healing process on their own, medication needs to be changed frequently, which is very painful for the patient; the wounds are often destroyed due to infection, pressure, poor nutrition, etc., causing the wounds to deepen and require Surgical treatment is required. Surgical treatment of deep second-degree burns has the advantages of early removal of lesions, shortening the course of treatment, reducing the patient’s pain, reducing the degree of disability, etc., and is conducive to functional recovery. Therefore, early surgical treatment is mostly advocated for deep second-degree burns in functional areas or small areas.