The invention discloses a double-motor-driven mechanical clamping hand device. The device comprises a main plate frame, the two sides of the main plate frame are provided with hinge bases, the hinge bases are hinged to grabbing arms, tong plates are hinged to one ends of the grabbing arms, anti-skid rubber pads are attached to one sides of the tong plates, the hinge bases are connected with the positions, inclined to one ends, of the grabbing arms through reset springs, and rolling wheels are arranged at the other ends of the grabbing arms in a rotating mode; and a vertical frame is welded tothe middle position of the main plate frame, the two sides of the vertical frame are provided with spring seats, the spring seats are fixedly connected with one ends of buffer springs, the other endsof the buffer springs are fixedly connected with stepping motors, the stepping motors cooperate with cams, the cams are in contact fit with the rolling wheels, and a wiring base is arranged at one endof the vertical frame. According to the double-motor-driven mechanical clamping hand device, the structure is simple, the operation is convenient, the clamping operation process is reliable, a product is not prone to slipping off, meanwhile, the product is not prone to scratch, and the clamping effect is excellent.