The invention discloses a sobering-up acetic acid milky tea and a preparation method thereof. The sobering-up acetic acid milky tea comprises the following raw materials in parts by weight: 400-500 parts of degreased milk, 70-80 parts of watermelon, 40-50 parts of sugar cane, 20-30 parts of sweet oranges, 30-40 parts of tender bamboo leaves, 10-20 parts of dogbane leaves, 10-20 parts of apple blossoms, 6-7 parts of penthorum Chinense pursh, 3-4 parts of water chestnut leaves, 7-8 parts of prepared rehmannia roots, 1-2 parts of cade, 1-2 parts of roots of hollyhock, 4-5 parts of grifola, 20-30 parts of apple vinegar, 30-40 parts of a wheat gern powder and a proper amount of aroma enhancement carbon; according to the sobering-up acetic acid milky tea provided by the invention, the raw materials such as the tender bamboo leaves and the like are extracted by using the degreased milk after being baked by using the aroma enhancement carbon, so that the milky tea is full of charcoal roasted flavor, is full-bodied and unique, is added with raw materials having the efficacies of dispelling the effects of alcohol, protecting liver, alleviating alcohol toxicity, inducing diuresis and treating stranguria, thereby achieving a good hangover alleviating and alcohol dispelling effects, due to the addition of the apple vinegar, the sobering-up acetic acid milky tea is sour and sweet, tastes good, can adjust human body acid-base equilibrium and promote metabolization, the finished milky tea is brewed by using boiling water, is drunk before or after alcohol drinking, and can remarkably dispel the effects of alcohol, protect the liver, and refresh and restore consciousness.