The invention discloses a buckwheat wine. The buckwheat wine comprises the following raw materials in parts by weight: 120 to 130 parts of tartary buckwheat, 1 to 2 parts of distiller's yeast, 10 to 20 parts of husk, and 5 to 15 parts of sorghum; wherein the distiller's yeast is composed of the following raw materials in parts by weight: 27 to 32 parts of ephedra stem, 27 to 32 parts of rhizoma atractylodis, 27 to 32 parts of cassia twig, 7 to 12 parts of snake leather, 7 to 12 parts of poria, 7 to 12 parts of dahurian angelica root, 7 to 12 parts of medicated leaven, 7 to 12 parts of dry ginger, 7 to 12 parts of processed pinellia tuber, 7 to 12 parts of balloonflower root, 12 to 17 parts of Chinese angelica, 4 to 8 parts of cassia bark, 4 to 8 parts of monkshood, 4 to 8 parts of dried orange peel, 12 to 17 parts of Baiyao, and 7 to 12 parts of licorice. The preparation method comprises the following steps: soaking tartary buckwheat, steaming the tartary buckwheat, cooling, adding distiller's yeast, fermenting, and steaming. The buckwheat wine has the characteristics of white color, clarity, transparency, low methanol content, no bitterness, and excellent taste.