Lattice laser is a new type of CO2 laser local therapy, which uses CO2 laser energy to penetrate the skin and stimulate the production of new collagen. Energy is applied in stages, that is, a small amount of thermal damage is separated, so that normal tissues between thermal injuries are not affected. This part of the skin can be used as a thermal diffusion area to avoid possible side effects such as thermal damage, and at the same time, it can promote the healing process of the skin and enable patients to resume their daily activities in a shorter time. Tan Junchao Pulse, Plastic Laser Cosmetic Surgery, Hunan Provincial People's Hospital: Super pulse mode, used for soft tissue ablation, vaporization resection, incision and coagulation, continuous cutting, rapid hemostasis and clear vision in plastic surgery. CW: continuous mode, suitable for eyelid beauty and other applications that require a certain thermal effect, and can also be used for cutting and hemostasis in plastic surgery. Indications: superficial scars of the whole body can be completely removed by naked eyes. The uneven facial marks left by acne can be treated. Remove all kinds of vegetation on the body surface. Treatment of pigmentation after skin grafting. Remove fine lines around the eyes, forehead and face.