Burn is a common type of trauma,and its severity is greater than ordinary trauma.Different degrees of burn will bring different degrees of pollution to the wound,and if not treated in time,infections will occur,which can affect healing and even be life-threatening.The healing of burn wound is divided into three stages:inflammation,proliferation and remodeling,and if the healing time is relatively long,it will bring long-term pain and inconvenience to the injured.As a safe wound treatment method,cold plasma can effectively kill pathogenic bacteria on wound surface,shorten wound healing process and reduce healing time.