Medical aesthetic technology has evolved and wrinkle rejuvenation techniques have undergone tremendous changes. The initial methods used were mechanical grinding and chemical peeling, and later developed to laser grinding. Although these methods are more effective, however, the inflammatory reaction after treatment is more pronounced and the erythema period is longer. One of the main disadvantages is that most yellow people will have significant pigmentation for 2-6 months after surgery. The above mentioned methods cannot be promoted and used in large numbers in China because of various constraints. In 1999, Bitter et al. applied IPL for photoaging and found that wrinkles, rough skin, enlarged pores, dilated capillaries and irregular pigmentation caused by photoaging were significantly improved. Since then photorejuvenation treatment has been inaugurated. The indications for photorejuvenation are: 1. pigmented lesions: freckles, freckle-like nevi, coffee spots, chloasma, hyperpigmentation and age spots. 2. Vascular lesions: capillary dilation, rosacea (erythema phase), skin heterochromia, and erythema after laser grinding or other skin resurfacing procedures. 3. Photodamage, fine wrinkles and skin laxity caused by photoaging, enlarged pores, and shallow depressed scarring due to acne, chicken pox or smallpox, etc. Photorejuvenation is a non-exfoliating skin rejuvenation treatment using continuous intense pulsed light technology at low energy density. Photorejuvenation can improve not only wrinkles but also irregular skin pigmentation, skin texture, etc. Because of the low energy density of the treatment, there are basically no side effects and the patient can resume normal activities and work without rest after the treatment.