In order to increase the security, the efficiency and the product quality in the process of producing cannonballs, we design the control system of shell spire loading product line based on CC-Link. The shell spire loading production line is mainly composed of dealing with empty cannonball is preprocessing, heating up explosive, case charge, precise machining warhead, precise machining warhead, checking up product’s quality, fixing fittings, and dealing with product’s appearance and so on. This paper introduces the makeup and the flow of the production line. The center control system communicates with each branch system using CC-Link field bus. The production and alarm states of each branch system are all displayed real time on the computer in center control room. The result shows that this system can reduce the intensity of workers and increase the security and the efficiency in the process of the production.