Tea saponin, also known as tea saponin, has strong effects of foaming, emulsifying, dispersing and moistening, as well as physiological activities such as anti-permeability, anti-inflammatory and analgesic, as well as functions of sterilization and insect control and stimulating the growth of certain microorganisms. Therefore, it can be used to make various types of detergents, cosmetics, foams, preservatives, emulsifiers, pesticides and other agents.