The invention relates to drink vinegar and a preparation method thereof. The drink vinegar comprises rice vinegar, honey and traditional Chinese medicine components, wherein the traditional Chinese medicine components include Chinese yam, sesame, lily, raspberries, black beans, white poria, Chinese hawthorn fruits, euryale ferox, coix seeds, herba cistanche, walnuts, illicium verum, king solomonseal rhizome, barbary wolfberry fruits and longan aril. The preparation method includes the steps: uniformly mixing and then soaking the traditional Chinese medicine components and the rice vinegar, filtering a product obtained by soaking and respectively collecting filter residues and filter liquor; uniformly mixing the honey and the filter liquor to obtain the drink vinegar. A traditional Chinese medicine composition is improved in a food form and perfectly combined with the rice vinegar, the health care function of the rice vinegar can be improved, and the prepared drink vinegar is sour, sweet and pleasant in taste, ruddy and attractive in color, full in fragrance and free from negative irritation. Moreover, the preparation method is simple, low in production cost and convenient in drinking.