The present invention relates to a composition comprising of plant extract as an active component, specifically, Bamboo extract and Scutellaria extract, for the treatment and prevention of atopic dermatitis. The present invention is a natural ingredient obtained from a plant. The present invention can control immune responses by inhibiting the release of histamine and leukotrien, and thus, has effect in the treatment or prevention of allergic diseases, inflammatory diseases and skin diseases, specifically atopic dermatitis. The present invention has been proven safe and beneficial effecting the treatement of atopic dermitatis through clinical trials, and thus, can be used for the treatment and prevention of atopic dermitatis.