Chloasma is also called butterfly spot, pregnancy spot, or liver spot, etc. There are many treatment methods, which are briefly summarized as follows: First, oral and external drugs, such as the most commonly used vitamin C, vitamin E, tranexamic acid orally, and external arbutin cream, hydroquinone cream, azelaic acid and so on. Second, some whitening injections, such as tranexamic acid injection, reduced glutathione and so on. Third, using some photoelectric treatment, such as Q laser, the latest is the picosecond laser or large spot low energy Q laser, can also use photorejuvenation method for treatment. Fourthly, the method of chemical peeling is adopted, such as the treatment of fructose or salicylic acid. Therefore, the treatment methods of chloasma are still more, and clinically, one or several methods are often used for joint treatment.