Laser technology is an emerging high-tech discipline in the last decade. Due to the selective photothermal effect of laser, the treatment effect of many diseases has been fundamentally changed. At present, the treatment scope of the laser center includes: 1, pigmented diseases: nevus of Ota, Eaton’s nevus, freckles, sun spots, seborrheic keratosis (age spots), brown spots, coffee spots, eyebrow tattoos and other tattoos, etc. 2.Vascular diseases: nevus, capillary dilation, vascular nevus, early rosacea, etc. 3.Photonic skin rejuvenation: lighten or remove a variety of skin defects (pigmentation, capillary dilation, bright red nevus, etc.), whiten skin; improve skin elasticity and texture, delay skin aging; reduce wrinkles, shrink enlarged pores, reduce sebum secretion and acne. 4.Photonic hair removal: permanently remove unwanted hair from different parts of the body. 5.Radiofrequency skin tightening: improve skin aging, elasticity loss, double chin, cheek slackening, eye bags or neck slackening. 6.Keloid scar: early prevention and treatment of post-acne scar, hyperplastic scar, post-trauma scar, etc. 7.Blue light treatment for episodic acne.