Tea saponin is one kind of glycoside compound, which is extracted from camellia seeds. It is excellent natural nonionic active surfactants and biologic charaters. It is not only effective in decontamination, foaming, emulsification, decentralization and saturation, but also with function of diminishing inflammation, easing pain and resisting epiphyte, which is widely used in food, drink, chemical, medicine, pesticide, rubber, film, building materials, extinguish material, hair care products and so on. So that tea saponin can also be named as surfactant, woemulsion, detergent, pesticide, foaming agent and antiabrasive agent.