The invention provides a corrugated paper plate used for a building material and a preparation technology thereof. According to the invention, a strengthening adhesive is employed for bonding the corrugated paper plate, acrylate resin and silica sol in the strengthening adhesive are taken as main materials, accessories such as nickel aluminide, lead powder, and bauxitic clay are added to increasethe intensity and flame retardation capabilities of the adhesive after solidification, the proportion amount of the components and processing parameters of the technology are strictly controlled whilepreparing, a full mixing reaction of the components can be ensured, synergistic interaction effect can be achieved, the performance of the strengthening adhesive is greatly increased, the corrugatedpaper plate after bonding has the excellent compressive strength and flame retardation capabilities, enough bearing capability can be guaranteed, the corrugated paper plate accords with the flame retardation requirement of most interior decoration materials, and can be widely used in the field of the building material.