The invention discloses a kudzuvine root hovenia acerba tea and a preparation method thereof. The kudzuvine root hovenia acerba tea is prepared from the following raw materials: Fagopyrum tataricum, kudzuvine root, hovenia acerba, licorice, Rabdosia serra, blueberries flower, chrysanthemum, lophatherum gracile, hawthorn, dried flowers and fruits of sophora japonica, Chinese wolfberry, Siraitia grosvenorii, Radix Trichosanthis, carrot juice, rice wine, and honey. According to the kudzuvine root hovenia acerba tea prepared by the method provided by the invention, color protection and oxidation prevention are employed, the functional components are maximumly preserved, also baking and cold soaking are employed so as to precipitate beneficial ingredients more easily, and compounding with other traditional Chinese medicines are realized, the health care value is enhanced, the taste and flavor are improved and reconciled, Fagopyrum tataricum is endowed with flavor, and organic combination with tea is achieved. The kudzuvine root hovenia acerba tea is convenient to store and eat, can be drinkable after brewing, has light yellow and transparent tea color, is sweet and mellow, has the efficacy of clearing liver and improving vision, protecting liver and invigorating spleen, relieving thirst and eliminating restlessness, etc., can regulate liver functions and improve metabolic functions, and is beneficial to body health.