Abstract：This article is to introduce the clinical experience of Professor TANG Zhikun in the treatment of chloasma. Professor TANG holds that the core etiology and pathogenesis of chloasma is blood stasis， which runs through the entire course of the disease. The course of the disease is divided into progressive and stable stages， with liver depression as the main situation in the progressive stage and yin or yang deficiency in the stable stage. Therefore，Professor TANG divides chloasma into three syndrome types for treatment； he uses modified Huaban Decoction to treat liver depression and blood stasis syndrome， modified Ziyin Huoxue Decoction to treat yin deficiency and blood stasis syndrome，and modified Wenjing Decoction to treat yang deficiency and blood stasis syndrome.