The invention relates to the technical field of preparing a nutritive 
wine from red dates as raw materials through 
fermentation, and in particular relates to a red date nutritive 
wine and a preparation method thereof. The red date nutritive 
wine is prepared according to the following steps of: removing impurities from red dates which are used as raw materials, washing, soaking, heating and cooking the red dates, removing date pits and date skins, beating a red date pulp, adding water, adding pectase and 
cellulase, adjusting the pH value, preserving the heat, performing enzymolysis, and then squeezing to obtain a red date juice; and inoculating 
Kluyveromyces marxianus thalli suspension according to the red date juice, preserving the heat, performing anaerobic 
fermentation to obtain a fermented wine solution, then performing high-speed 
centrifugation to remove residues, performing membrane separation and refined 
filtration, and performing low-temperature vacuum concentration and 
reflux concentration on the wine solution to obtain a semi-finished product of the red date nutritive wine. The preparation method is reasonable and high in production efficiency; a clear juice is adopted for 
fermentation, so that the generation of harmful substances such as 
methanol and the like is reduced, and the product safety is high; and the raw materials are fully used, so that the defects that like products are high in 
sugar content and low in 
active ingredient content in the prior art are overcome.