The invention relates to a beverage and particularly discloses health-care dark tea. The health-care dark tea consists of the following raw materials in parts by weight: 5-8 parts of dark tea, 2 parts of buckwheat, 2-5 parts of lotus leaves, 2-5 parts of sweet potato leaves, 1 part of hawthorn, 3 parts of honeysuckle, 1 part of cassia seed, 1 part of bunge cherry seed, 3-6 parts of pumpkin, 2-4 parts of towel gourd, 2 parts of gingko, 3-5 parts of fructus momordicae, 1 part of mulberry leaf, 1 part of sophora japonica and 2-5 parts of boat-fruited sterculia. The health-care dark tea provided by the invention is easy to prepare and convenient to drink, keeps the warm aroma of dark tea while having the faint scent of the buckwheat and the honeysuckle, is good in taste, and also has a health care function. The dark tea has bactericidal, anti-inflammatory, diuretic, detoxification, anti-oxidation, anti-aging, anti-cancer, mutation-resistant, hypolipidemic, antihypertensive, carbohydrate metabolism improving, hpyerglycemic, and diabetes prevention and treatment functions, and by matching with the functions of promoting digestion and reducing excessive inflation of the hawthorn and the heat-clearing and detoxicating functions of the honeysuckle, the health care effect of the dark tea is remarkable.