The invention discloses a plastic injection syringe recovery and treatment device, which includes a work box and a work chamber located in the work box. A feed port is provided through the upper end wall of the work box, and the front and back wall of the work chamber are rotated. A first rotating shaft is located on the lower side of the feeding port, a first squeeze barrel is fixed on the first rotating shaft, and the front and rear cavity walls of the working cavity are provided with a frontal shaft located on the right side of the first rotating shaft. There are two rotating shafts, and a second squeeze barrel is fixed on the second rotating shaft. The present invention can recycle the used plastic syringes, and the residual gas and water in the used syringes are firstly squeezed by a squeezing device. Squeeze out and compress the plastic syringe to reduce its volume, and then crush the syringe through the crushing device to heat and melt the crushed syringe. During the heating process, it also sterilizes the metal needle. Function, after heating and melting, the molten plastic liquid is separated from the metal needle, and the classification and recovery are completed.
