The invention provides a caliper piston production process. According to the caliper piston production process, a coating is more uniform through machining of a piston, optimization of the surface treatment process and parameter adjustment, wherein full cleaning before electroplating is mainly involved, and therefore, the coating can be prevented from falling off; the whole processing process is more reasonable in procedure and high in yield, the abrasion resistance of the working surface of the piston is effectively improved while the hardness of the coating on the surface of a piston body isensured, moreover, the bonding degree between the coating and the surface of the piston body is improved, the stability of the product quality is guaranteed, then the piston can stably play the rolein a braking system, the accident rate is reduced, and the driving safety is improved.