The invention discloses an electromagnetic braking translation-type rolling plate clamp comprising a hoisting device, a driving device, a braking device, a supporting cross beam, a left clamp arm, a right clamp arm, a clamp arm protection device and an electrical system, wherein the driving device comprises a three-in-one speed reducer, a torque limiter, a small spiral bevel gear, a big spiral bevel gear, a rack, a gear, an aligning roller bearing and a gear shaft; and the electromagnetic braking device comprises an electromagnet, a ratchet wheel and a pawl. When in brake, the other end of the pawl is supported on the root of the ratchet wheel; the middle of the pawl is hinged on the rear side wall of the supporting cross beam; a detection device comprises a position switch arranged on the cross beam and a centering switch and an edge detection switch which are arranged on the clamp arms. In the invention, the driving device has stable running; the electromagnetic braking is accurate and reliable; and a sliding plate is well protected and can be easily and accurately reset. The clamp has the advantages of compact structure, light dead weight, high safety factor, high strength, comprehensive protection measure and high working efficiency, can realize automatic and semi-automatic running and relieve the labor intensity of workers.