The invention relates to a biological health-care product capable of slimming, reducing high blood pressure, high blood lipid and high blood sugar, and alleviating constipation, and a preparation method of the biological health-care product, and belongs to the field of health-care products. According to the biological health-care product and the preparation method thereof disclosed by the invention, various natural plant, vegetable and fruit components are combined together, so that the efficacy of slimming, nourishing faces, clearing the bowels, easing constipation, expelling toxins, resisting bacteria, reducing blood lipid, purifying blood, nourishing the liver and protecting the intestines can be achieved. The prepared health-care product has the effects of promoting secretion of hormones and antibodies to be balanced, resisting oxidation, resisting ageing and enhancing immunity, can also be used for reducing 3-high (high blood pressure, high blood sugar and high blood lipid), restraining high uric acids, relieving alcoholism and alleviating constipation; and the health-care product is green and safe, and is free from side effects on human bodies after being taken for a long term. The product prepared by the preparation method disclosed by the invention can be used for a functional food or a medicine, wherein the functional food can be in the shape of solid beverages, liquidbeverages, buccal tablets, health-care candies and the like, the medicine can be in the shape of capsules, tablets, medicinal granules, oral liquid and the like, and the product has the effects of reducing weight, reducing blood pressure, reducing blood lipid, reducing blood sugar, reducing uric acids, relieving alcoholism, easing constipation and the like.