The invention discloses bowel relaxing toxin expelling tea and a preparation method thereof. A treatment technology for raw materials is optimized, stir-frying and tossing frying are combined, wateryheat-moisture treatment is conducted through a woody steamer, a unique taste and unique quality are added, at the same time, the tea is composed of a fruit drink, Chinese herbal medicine and rock candies, all the components are supplemented mutually, and the effects of bowel relaxing, toxin expelling and fat reducing are realized; meanwhile, the production technology is simple, tea making for drinking is convenient, and the effects are remarkable. The bowel relaxing toxin expelling tea has no any toxic and side effects, is sour, sweet, soft, moist and refreshing in taste, can relieve eye fatigue, promote digestion and relax the bowel for crowds who sit for a long term and frequently make contact with electronic products, and can improve the eyesight, relax the bowel, expel toxins and reduce fat after being drunk for a long term.