The invention discloses a manufacturing method for quickly and accurately connecting a cylindrical reinforcement cage to a processing formwork and a reinforcement cage. The processing formwork includes a positioning baffle, an operating platform, a steel ring of the reinforcement cage and positioning ribs, and the positioning baffle is arranged at one end of the operating platform. , the positioning baffle is perpendicular to the ground, and the steel cage steel ring is set on the operating platform. The steel cage steel ring is concave arc-shaped, and the diameter matches the diameter of the processed steel cage. 2, and the central connection line is perpendicular to the positioning baffle, the positioning rib is arranged on the inner side of the steel ring of the steel cage, the spacing of the positioning ribs is set to be the same as the spacing between the main bars of the processed steel cage, the positioning baffle is a steel plate, and the operation The platform is a combination of channel steel, angle steel and steel plate. The invention can accurately fix the main reinforcement of the reinforcement cage. The spacing precision of the main reinforcement is high. The processed cylindrical reinforcement cage has a regular shape. high.