The present invention relates to compositions for preventing and treating cancer containing egg whites combined with blue vitriol. More specifically, the present invention relates to: the compositions which comprise the detoxified egg whites combined with blue vitriol individually, or together with the mixture of bamboo salts and egg whites combined with blue vitriol, wherein the egg whites combined with blue vitriol are produced by mixing egg whites with blue vitriol； and a preparation method thereof. The compositions containing the egg whites combined with blue vitriol have improved anticancer activity, and therefore can be valuably used for a pharmaceutical preparation for preventing and treating cancer and manufacturing functional health food.
