The invention discloses corona treatment equipment for the surface of an injector tube body. The equipment comprises a rack, a feeding mechanism, an upper pressing mechanism, a guide mechanism, a transmission mechanism, a driving mechanism, a corona treatment machine and a discharging mechanism. According to the corona treatment equipment, the feeding mechanism, the upper pressing mechanism, the guide mechanism, the transmission mechanism, the driving mechanism, the corona treatment machine and the discharging mechanism are adopted to form the integrated production line corona treatment equipment in a linked mode, uniform corona treatment on a whole circle of the outer surface of the injector tube body is realized, so that the injector tube body has high surface ink adhesion capability, printing firmness and definition, stability of the printing process of an injector is greatly improved and becomes high, and the corona treatment effect and efficiency are improved; and the equipment isingenious in structural design, limited installation and arrangement space is fully utilized, high stability, firmness and balance capability are achieved, the working efficiency is high, the energyis saved, the environment is protected, and the equipment is suitable for popularization and application.