The invention discloses a special transporting device for machining plates. The special transporting device for the machining plates comprises a vehicle bottom plate; side plates are welded on both sides of the vehicle bottom plate; a group of reinforcing ribs are welded outside the side plates; one group of bow slice seats are welded at the bottom of the vehicle bottom plate; the bow slice seats are matched with one group of bow slices; the bow slices are connected with wheel axle seats; the wheel axle seats are in running fit with a wheel axle; wheels are mounted at two ends of the wheel axle; two ends of the vehicle bottom plate are hinged with a stopping door through one group of hinges; one group of torsion spring shaft seats are welded on the inner walls of the side plates; the torsion spring shaft seats are hinged with supporting plates through torsion spring shafts; one group of locating rods also penetrate through the side plates; the locating rods are matched with the side plates through thrust springs; and the locating rods are adaptive to the supporting plates. The special transporting device for the machining plates is used for transporting the plates, can prevent scratches on the surfaces of the plates due to the frictions between the plates and can also reduce the impact of bumping on the plates during running by using shock absorbing rubber blocks to match the shock absorbing bow slices.