Abrasion surgery has made great progress in the treatment of non-III degree burns. The reason why an abrasion surgery at a critical moment can play a “four-two-thousand-pound” role is that: 1. the human skin anatomy is suitable for abrasion. 2. 2. Scabbing disrupts the process of progressive aggravation of the trauma. 3. A burn wound is transformed into a traumatic wound while removing necrotic tissue and preserving inter-ecological cells. 4. Scabbing is the best trauma drainage procedure. (1) It reduces the tissue edema after burn injury. (2) The burn wound is the interface and saving pool for various reactions. 5.After abrasion scab surgery, there must be a good coverage to make the trauma repair in a good environment. The trauma heals quickly after grinding scab surgery, shallow II degree burns can heal in 12-14 days, deep II burns can heal in about 21 days, especially early grinding scabs on functional parts can preserve and improve their functions with less scarring, shorter hospital stay and lower medical costs.