The invention provides a Dai food capable of promoting uric acid metabolism and a preparation method thereof. The Dai food is composed of the following components in parts by weight: 50 to 100 parts of ampelopsis grossedentata leaf, 50 to 100 parts of root of kudzu vine, 60 to 100 parts of grosvenor momordica fruit, 20 to 30 parts of orange peel, 50 to 90 parts of purslane, 50 to 90 parts of mulberry fruit, 30 to 80 parts of lophatherum gracile, 30 to 90 parts of corn silk, 30 to 80 parts of cape jasmine, and 50 to 80 parts of radix astragali. The provided Dai food can reduce the uric acid, and is suitable for the people with high uric acid, gout patients and normal people. By drinking the Dai food, the uric acid can be reduced, the kidney can be targeted and protected; after regular application of the Dai food, the kidney can be strengthened, the uric acid is discharged, and the relapse of high uric acid symptom is inhibited. The Dai food is prepared from natural herbals, and does not any side or toxic effect, people do not need to avoid certain food, the active components in the Dai food can eliminate the toxin in the kidney, the taste of the Dai food is good, the Dai food can be drunk regularly and can meet the modern life requirements. Compared with similar products, the provided Dai food has the advantages of low cost, easy absorption, safety, reliability, no adverse reaction, and no sugar, and is suitable for any people.