A peptide for synthesizing silica and use thereof are provided. The peptide for synthesizing silica can polymerize silica from a silica precursor in an aqueous solution having conditions of normal temperature, normal pressure and near-neutral weak base. The peptide for synthesizing silica can form a self-assembled structure during silica synthesis, and thus can be used as various biomaterials such as a silica-based protein immobilizer, a biosensor, and a drug delivery system.
