The extraction technology of tea polyphenols in Zhejiang University is real. Tea polyphenol is an important component in tea, which has many biological activities such as antioxidation, anti-inflammatory and anticancer. Zhejiang University has in-depth research and rich experience in the extraction of tea polyphenols. Through advanced extraction technology, tea polyphenols can be efficiently extracted from tea, which provides strong support for the development of tea industry and the inheritance of tea culture.