Fractional laser scar removal, which is clinically known as fractional laser treatment for keloid scar, is clinically effective but requires multiple treatments. Fractional laser treatment for scarring is to achieve peeling off the skin from the surface layer through the photothermal effect of laser, and at the same time stimulate the regeneration and rearrangement of subcutaneous collagen damage, so as to effectively improve the skin roughness and depressed scarring. Generally, several treatments are needed, each with an interval of 1-3 months. Fractional laser treatment for scarring is a micro-injury treatment, so recovery after the procedure is faster. When using fractional laser treatment, it is more suitable for atrophic scar and hypertrophic scar. One time may not be able to achieve the ideal effect of the treatment, it needs 3 to 5 times to complete a course of treatment, and the treatment process needs to pay attention to care and sun protection. Fractional laser treatment for keloid scars should go to a regular hospital to see a specialist for an interview and be operated by a specialist.