Disclosed is a tea beverage and production method therefor. The tea beverage comprises tea, reverse osmosis water which is deoxidized and deionized, and a food antioxidant, and the oxygen content in the freshly packaged tea beverage is ‰¤ 1 mg/L.一種茶飲料及其生產方法。該茶飲料及採用這種方法所生產的茶飲料具有清新的茶香,明顯減少了高溫熱浸提和高溫殺菌過程所帶來的不良氣味;貯存過程中,顏色褐變明顯減弱,能很好的保持茶新鮮的風味,且剛灌裝好的茶飲料中氧氣含量1 ml/L。