The invention relates to roxburgh rose fruit wine and a preparation method thereof. The fruit wine is prepared by fermentation of raw materials in parts by weight, 800-1200 parts of roxburgh roses, 500-1000 parts of purified water, 30-70 parts of white granulated sugar, 0.05-0.1 part of yeast, 0.02-0.05 part of bentonite, 0.008-0.012 part of egg white and 0.13-0.18 part of potassium metabisulfite.The roxburgh rose fruit wine prepared according to the method has the advantages that unique flavor substances and various nutritional ingredients of the roxburgh roses are maintained, and the problems that the roxburgh rose fruit wine is easy to oxidize to generate the oxidation smell, becomes muddy easily to generate sediments, has short shelf life and the like are solved; after fermenting andaging, the roxburgh rose fruit wine is subjected to clarification, filtration, stabilization and refined filtration, so that the finished roxburgh rose fruit wine has stable color and luster and is clear and transparent, tastes soft, mellow, refreshing and fine, various fragrances interact with one another, and the aftertaste lasts long; the wine has unique taste of the roxburgh roses and the mellow sense of fruit wine, and has various health care effects of promoting digestion, tonifying spleen, promoting astringency, stopping diarrhea, clearing summer-heat by cooling, invigorating health effectively and the like.