The invention relates to an assembled component of a steel structure bundling system, which comprises a front element and a rear element which are spaced and arranged at front and rear, wherein the front member and the rear member are all integrally formed G-shaped steel elements, the G-shaped steel element comprises a element bottom plate and elements side plates arranged on two sides of the element bottom plate, one ends of the side plates, away from the element bottom plate, are provided with folded element wing plates which faces with each other, the opposite ends of the two element swingplates of the same G-shaped steel element are provided with stiffened edges which are internally folded towards the element bottom plate, so that the corresponding two element wing plates form a restraining edge, the front element and the rear element are connected with each other through a connecting element which is connected between the element bottom plates of the front element and rear element. The front element and the rear element are spaced and arranged, the front element and the rear element are connected with each other through a connecting element which is connected between the bottom plates of the front element and rear element for form the assembled component of the steel structure bundling system, compared with the prior art, wherein only one element is used, the assembled component of the steel structure bundling system can ensure the structural strength of the products.