The invention relates to a hangover alleviating and liver protecting composition and a preparation method thereof. The hangover alleviating and liver protecting composition is prepared from the following components in parts by weight: 60 to 70 parts of radix puerariae, 50 to 60 parts of semen hoveniae, 35 to 45 parts of flos puerariae, 25 to 35 parts of poria cocos, 20 to 30 parts of liquorice root, 15 to 25 parts of flos chrysanthemi, 1 to 3 parts of round cardamom slices, 3 to 7 parts of vitamin B, 1 to 3 parts of taurine and 1 to 5 parts of honey. The alcoholism-relieving and liver-protecting composition provided by the invention is prepared by decocting a plurality of genuine medicinal materials, the poria cocos, the liquorice, the chrysanthemum and the honey are supplemented to improve the sweetness of the product, and the alcoholism-relieving and liver-protecting composition is sweet but not greasy in taste, has a light traditional Chinese medicine fresh scent in aftertaste, has obvious alcoholism-relieving and liver-protecting effects, can accelerate the metabolism of ethanol in vivo and reduce the generation of lipid peroxide, and has a good anti-alcoholism and liver-protecting effect. And the tea also has multiple effects of clearing damp, promoting diuresis, tonifying spleen, calming heart, tonifying spleen and stomach, moistening lung, dispelling wind, clearing heat, calming liver, improving eyesight, clearing heat and removing toxicity. Secondly, through the processes of extraction, fermentation, clarification and the like, the utilization rate of the medicinal materials is greatly increased, and the number and quality of active substances in the medicinal materials are increased.