Q-switched Nd:YAG laser skin rejuvenation is a photoelectric medical aesthetic project based on Q-switching technology. It works on different layers of the skin by outputting lasers with specific wavelengths such as 1064nm and 532nm. It uses the photothermal effect to stimulate the regeneration and remodeling of collagen, while improving pigmentation and refining pores, and finally achieves the effect of skin rejuvenation and anti-aging.