PURPOSE: A functional tea composition and functional tea are provided to reduce damages to the human body by radioactivity by using active ingredients absorbing harmful materials in the body and discharging the harmful materials to the outside of the body.CONSTITUTION: A functional tea composition and functional tea contain a conventional tea composition, and more than one active ingredient effective to the detoxification of various kinds of harmful materials. The active ingredients are selected from a group consisting of methionine, poly phenols, an uronic acid derivative, aminoglucoside, melanoidin, pseudouridine, glycinebetaine, catechin, spirulina, Indian gooseberry, and black chokeberry.COPYRIGHT KIPO 2013본 발명은 차(茶)에 관한 것으로각종 유해물질의 해독을 돕는 1종 이상의 유효성분을 추가의 구성요소로 더 포함하므로써 이루어진 것을 특징으로 하는 체내 유해물질의 해독을 위한 유효성분이 함유된 기능성차조성물과 기능성차에 관한 것이다.