The invention discloses a push-pull base for a 3D printer, which includes a bottom plate, the upper surface of the bottom plate is fixedly connected with the lower surface of the box body through support legs, and the lower surface of the inner wall of the box is connected with the lower surface of the driving device through a fixing rod. fixedly connected, the driving device meshes with the gear rod, the left end of the gear rod is fixedly connected with the left side of the inner wall of the box through the telescopic device, the upper surface of the gear rod is fixedly connected with the lower surface of the sliding device, and the The sliding device is arranged on the lower surface of the connecting plate, the left side of the connecting plate is fixedly connected with the left side of the inner wall of the box, and the right end of the gear rod is fixedly connected with the left side of the connecting rod. The 3D printer push-pull base, through the mutual cooperation between motors, wheels, teeth, gear rods, telescopic rods, springs, connecting rods, sliding sleeves, sliding rods, support rods and loading boards, does not require staff The product is then manually taken out of the 3D printer, which facilitates the work of the staff.