The invention discloses a plastic product processing device which comprises a machine tool, a processing mechanism and a feeding barrel. The processing mechanism and the feeding barrel are arranged onthe machine tool. The processing mechanism comprises a machine frame and a fixing rod horizontally fixed to the machine frame. The bottom of the end, away from the machine frame, of the fixing rod isprovided with a first air pressure cylinder, processing equipment is connected to one end of a piston rod of the first air pressure cylinder, one side of a shell of the processing equipment is provided with a distance sensor connected with an upper computer, the feeding barrel is perpendicularly arranged above the machine tool through a first fixing frame, the machine tool is provided with an operation table, the operation table is provided with a first gap, a transfer disc is arranged inside the operation table, and a movable shaft is inserted in the middle of the transfer disc in a penetrating mode. The plastic product processing device has the beneficial effects that plastic products can be automatically processed, plastic product loading and unloading time is saved, processing is moreefficient, and practicability is high.