A cool and refreshing tea beverage for reducing internal heat is prepared from the following raw materials, by weight, 40-50 parts of green tea leaf, 4-6 parts of mint leaf, 5-7 parts of isatis root, 1-2 parts of tomato seed oil, 12-15 parts of balsam pear, 10-14 parts of pumpkin seed, 8-10 parts of oat, 8-10 parts of camomile, 5-6 parts of honeysuckle flower, 4-5 parts of salt, 2-4 parts of ephedra stem, 13-15 parts of mung bean, 2-3 parts of beer, 18-22 parts of rock sugar, 2-4 parts of an auxiliary agent and 800-1000 parts of water. The tea beverage provided by the invention is cool and refreshing and has a characteristic of reducing internal heat. The tea beverage contains cool traditional Chinese medicines and food such as chamomile, mint leaf, ephedra stem, isatis root, honeysuckle flower and the like, wherein camomile and isatis root even can be independently used as main materials of herbal tea. According to the invention, pumpkin seed, mung bean and oat are fried to burnt, starch-based food materials give out special burnt fragrance at high temperature, and the effect is better by soaking; honeysuckle flower, isatis root, mint leaf, ephedra stem, camomile and the like are firstly boiled with big fire and then concentrated with soft fire; through fine filtration, residues do not enter a finished production so as to guarantee quality and shelf-life of the finished product; and especially, the addition of balsam pear is the icing on the cake, making the taste much better.