The invention relates to tangerine healthcare fruit vinegar and a preparation method thereof. The tangerine healthcare fruit vinegar is prepared from, by weight, 92.7%-98.15% of original tangerine pulp, 0.05%-0.1% of yeast powder, 0.1%-0.3% of rhizoma polygonatum decoction pieces, 0.2%-0.5% of hawthorn decoction pieces and 1.5%-6.4% of water. The sum of the percentages of the components is 100%. The solid fermentation method is adopted, and an adopted fermentation medium is calcified tangerine peel disintegrated residues. The prepared tangerine fruit vinegar has the special fragrance of tangerine fruits, and the special taste of the tangerine fruit vinegar is guaranteed. Meanwhile, rhizoma polygonatum, hawthorns and other traditional Chinese medicinal materials with the medical and edible dual purposes are added, and the healthcare functions of preventing diabetes, aiding digestion and the like are enhanced.