lts structure of which is made up of front-plate, reinforcedrib, and angle is processed by high-intensity aluminum alloy material. The front-plate can be directly bent and stamped to the shape of angle, meanwhile, it is to be made by riveting on the front-plate flanging. The reinforced rib is jointed by the electrical welding bolt at the back of plate, so as to form the whole structure. Therefore, greatly reinforces the intensity and strengthen characters to aluminum single plate curtain wall, guaranteeing evenness and shock resistance ability.