To provide a concentrated tea beverage that gives rich feeling when drinking and is imparted with moderate bitter and astringent taste.SOLUTION: A tea beverage having (a) a non-polymerized catechin concentration in the beverage of 10 to 80 mg/100 mL and (b) a caffeine concentration in the beverage of 40 to 100 mg/100 mL is provided. There are also provided: the tea beverage having a viscosity of the beverage of 1.05 mPa s or more; the tea beverage having a soluble solid content of the beverage of 0.45 or more; the tea beverage having a ratio of a viscosity to a non-polymerized catechin concentration (a viscosity/non-polymerized catechin concentration ratio) of 0.013 or more.SELECTED DRAWING: None【課題】飲み応えがあり、ほどよい苦渋味が付与された濃厚茶飲料の提供。【解決手段】本発明によれば、(a)飲料中の非重合カテキン濃度が10~80mg/100mLであり、(b)飲料中のカフェイン濃度が40~100mg/100mLである茶飲料が提供される。本発明によればまた、飲料の粘度が、1.05mPa・s以上である茶飲料、飲料の可溶性固形分が、0.45以上である茶飲料、非重合カテキン濃度に対する粘度の比率(粘度/非重合カテキン濃度比率)が0.013以上である茶飲料が提供される。【選択図】なし