The invention discloses a plastic cylinder sawing and cutting machine tool and belongs to the technical field of mechanical device design. The plastic cylinder sawing and cutting machine tool comprises a workbench, a baffle plate, rollers, stand columns, cooling components, a fixing seat and a rotating arm. The rear portion of the upper surface of the workbench is provided with the two stand columns, the outer sides of the two stand columns are provided with bosses respectively, and the rollers are fixed to the bosses. When the plastic cylinder sawing and cutting machine tool works, the baffle plate is placed at the position, located in front of the two stand columns, of the upper surface of the workbench, the front side face of the baffle plate is fixedly provided with a shaft, the shaft is inserted into a hole in the left side of the rotating arm and fixed to the rotating arm, the right end of the rotating arm and the fixing seat form a rotating pair through another shaft, and fixing seat is fixed to the right side face of the workbench and forms a whole with the workbench. According to the plastic cylinder sawing and cutting machine tool, heat generated by a saw blade can be taken away timely, the saw blade is not prone to deformation, sawing and cutting are smooth, a saw seam is flat, and the front-rear position of the baffle plate is adjustable.