Abstract:Tea polyphenols are the main active ingredients in tea.Modern pharmacological studies show that tea polyphenols have antibacterial，anti-inflammatory，anti-oxidative，anti-tumor，liver-protecting，intestinalprotecting，cardiovascular-protecting，and other extensive physiological mechanism.Therefore，it is essential to study the physiological mechanism of tea polyphenols and their application in health food.Based on the research of tea polyphenols in China and foreign countries in recent years，this paper summarized the research status of their physiological mechanism and health food，hoping to provide references for the in-depth development and clinical application of tea polyphenols.