The invention discloses a health care herbal tea, which comprises the following raw materials by weight: 10-25 parts of Hibiscus sabdariffa, 5-15 parts of hawthorn, 5-10 parts of citrus reticulata, 5-12 parts of pomelo peel, 5-12 parts of myrica rubra, 5-10 parts of dandelion, and 20-35 parts of lemon. The preparation method of health care herbal tea includes the steps of: (1) adding 8 times amount of water into Hibiscus sabdariffa, hawthorn, citrus reticulata, pomelo peel, myrica rubra, dandelion and lemon respectively, performing decoction twice, one hour each time, combing the decocted liquid, conducting filtering, and concentrating and cooling the filtrate; (2) performing repurification: adding purified water into the concentrated liquid to conduct dilution till completely transparent, and then carrying out centrifugation and filtration; (3) subjecting the filtrate to reduced pressure distillation concentration, thus obtaining high concentration single semi-finished products; (4) blending the high concentration single semi-finished products; and (5) performing encapsulation. The health care herbal tea has the efficacy of removing toxin and maintaining beauty, improving immunity, preventing diseases and keeping fit, relieving pain and resisting cancer, etc., is safe and free of side effect, conveniently drinkable, and is suitable for people of all ages.