The present invention discloses a green tea beverage which adopts barrenwort, hawthorn fruits, herba gynostemmatis pentaphylli, Chinese waxgourd stems and other Chinese herbal medicines as raw materials. The beverage has the effects of promoting fluid production, quenching thirst, regulating immunity, invigorating kidney yang, strengthening bones and muscles, expelling wind-damp and the like. By taking the beverage, the life quality of drinkers can be effectively improved, so that the beverage is a green healthy beverage with significant healthcare effects. The green tea beverage provided by the invention comprises the following raw materials, based on every 1000 parts by weight of the beverage: 20 to 30 parts of fresh green tea leaves, 15 to 25 parts of barrenwort, 15 to 25 parts of hawthorn fruits, 10 to 15 parts of herba gynostemmatis pentaphylli, 5 to 10 parts of honeysuckle flowers, 5 to 10 parts of Chinese waxgourd stems, 5 to 10 parts of lyophilized emblic leafflower fruit powder, 5 to 10 parts of isomaltooligosaccharide, 1 to 5 parts of citric acid, 1 to 3 parts of sorbitol, 1 to 2 parts of sodium erythorbate, 1 to 5 parts of laminarin and the balance being water. According to the present invention, an ultrasonic-assisted secondary extraction process is adopted to extract Chinese herbal medicine active substances, so that the extraction rate of the active substances is increased, and the nutritive value of green tea is increased. The green tea beverage has the advantages of extensive raw material sources, simple production process, high extraction rate, and relatively low equipment requirements, thereby being suitable for large-scale industrial production.