The invention relates to the field of screw twisting tools, in particular to a screw twisting device. The screw twisting device comprises a first clamping component, wherein the first clamping component is rotationally assembled with a second clamping component through a rotating shaft; a hook structure matched with a screw is arranged on the first clamping component; a first clamping surface is arranged on the hook structure; a second clamping surface is arranged on the second clamping component; the first clamping component and the second clamping component are matched, so that the first clamping surface and the second clamping surface clam the screw when the second clamping component is rotated to a set position. Compared with the conventional screw twisting device, the screw twisting device provided by the invention does not need to tap the screw, is convenient to operate and high in screw removing efficiency, and solves the problems that the conventional decapitated bolt removing structure is inconvenient to operate and is low in screw removing efficiency.