Purple sweet potato glutinous rice wine and preparation process thereof

The invention discloses purple sweet potato glutinous rice wine and a preparation process thereof. The purple sweet potato glutinous rice wine is prepared by taking purple sweet potato and glutinous rice as main preparation raw materials, matching with dry petals in a fermentation link and fermenting by adopting sweet distiller's yeast. According to the invention, a traditional good brewing technology of Miao in southeast Guizhou is combined with a modern scientific good brewing technology, starch in glutinous rice and purple sweet potatoes is converted into wine, anthocyanin enriched in the purple sweet potatoes is extracted, and dry rose petals are added to enhance aroma and protect color, so that the product has soft and fine taste, a wine body is ruby red, the wine is glittering and clear, and mellow and slightly smoked in taste, the wine is pleasant in taste, rich in anthocyanin, capable of keeping skin elasticity after being drunk for a long time, remarkable in antioxidant effect, and capable of improvi