Red wine polyphenols are extracted from red wine. There are more than 50 kinds of polyphenols in red wine. Polyphenols have strong antioxidant ability. The content of polyphenols in red wine is higher, the composition is more stable, and the antioxidant ability is greatly improved. At present, it is found that the antioxidant species are the most and the antioxidant range is the widest.