Tests on wine making with six cultivars of V. davidii Foex in Huaihua were carried out, The sugar contents of these six grapes all were 12.3% - 15.9%, thereinto the Mi Spine Grape had the highest sugar content (15.9%). Added the same proportion of sucrose, the wines made by Mi Spine Grape had the highest alcohol content, and the chroma and sugar-free extract were all in a higher level, Besides, White Spine Grape was found suitable for making white wine. In short, the wine quality can be improved by adding sugar and improving th...