Taxifolin is a dihydroflavonoid commonly found in pinaceae,fruits and vegetables.The common extraction methods are ethanol heating extraction,ultrasonic-assisted extraction and flash extraction.The most commonly used test method for detecting taxifolin is high-performance liquid chromatography.The results of in vitro and animal tests confirmed that taxifolin had many biological activities,such as antioxidation,anti-cancer,anti-inflammation,liver protection.In this paper,the methods of extraction and determination,and the mechanisms of antioxidation,anti-inflammation and anti-canc-er were summa...