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.