Onion wine (dry red wine and dry white wine) is a national patent product jointly developed by Hebei Taiji Group and Sichuan Guangyuan Liquor Research Institute. Using high-quality purple onion as raw material, it is made by juicing and cold fermentation at low temperature, which retains the nutrients to the maximum extent. After blending with high-quality wine, the taste is more harmonious, which is convenient for the human body to absorb nutrients, and has the effects of preventing cancer, resisting aging and reducing the quality of products. Long-term drinking has obvious health care effect.