Tea drink with anti-radiation effect

The invention discloses tea drink with an anti-radiation effect and a preparation method thereof. The tea drink is prepared from the following preparation raw materials in parts by weight: 2-5 parts of alga, 5-10 parts of kelp, 20-30 parts of green tea, 10-20 parts of coix seed, 15-40 parts of spina date seed, 4-8 parts of Chinese magnoliavine fruit, 10-15 parts of dahurian rose fruit, 5-8 parts of liquoric root, 10-20 parts of vitamin C, 6-9 parts of vitamin E and 10-30 parts of sucrose. The materials selected for preparing the tea drink are special, i.e., the green tea and the traditional Chinese medicines can eliminate the free radicals in the body, enhance the immune function in the body and delay the aging, and the kelp and the alga can discharge radioactive substances in the body and have the function of treating both symptoms and root causes; the tea drink has an obvious effect through the compatibility of the raw materials and overcomes the defect of single effect of the conventional health-care tea.