The invention relates to medlar leaf health-care tea and a preparation method thereof and belongs to the fields of formula and preparation of health-care tea. The technical scheme is that: the medlar leaf health-care tea is refined by using medlar leaves serving as main materials and various medicinal extractives; the preparation process comprises the steps of screening, washing, placing flatly, deteriorating, green-removing, twisting and spraying the medicinal plant extractives, baking and subpackaging the products to obtain the finished products. The products have four series. The medlar leaf health-care tea maintains active ingredients in the medlar leaf well, completely exerts the pharmacological characteristics of the medlar leaf, has synergism by combining with various extractives and has respective effects of the extractives. The medlar leaf health-care tea is suitable for long-term drinking so as to clear heat and detoxify, maintain beauty and keep young, nourish the kidney and tonify yang, improve eyesight and calm the nerves, relieve fidget and quench one's thirst, improve sleeping, enhance human immunity, prevent cold, has auxiliary curative effect of reducing blood fatand blood sugar, and is particularly suitable for people suffering from parched mouth and scorched tongue, internal heat and toothache and constipation to drink. The medlar leaf health-care tea has the advantages of low price, easiness in popularization, good benefit and the like.