Ginkgo biloba leaves have a wide range of biological activities, including a variety of chemical components, including flavonoids, terpenoids, polysaccharides, phenols, organic acids, alkaloids, amino acids, steroids, trace elements. Among them, vitamin C, vitamin E, carotene and calcium, phosphorus, boron, selenium and other mineral elements are also very rich, but the most important medicinal value components are flavonoids and terpenoids. Flavonoids and anthraquinones have many functions such as vasodilation and anti-oxidation.