An object of the present invention is to provide a tea beverage which can suppress the occurrence of turbidity even if it contains chitosan. According to the present invention, a non-fermented tea beverage or a semi-fermented tea beverage containing a chitosan having a molecular weight of 7 kDa or less at a concentration of 200 ppm or less can be provided.本發明課題在於提供一種雖含有幾丁聚醣,但仍可抑制混濁的產生的茶飲料。解決手段為,根據本發明,可提供一種以200ppm以下的濃度含有分子量為7kDa以下之幾丁聚醣的非發酵茶飲料或半發酵茶飲料。