Abstract: A hand-held power screwdriver with a clamping device is disclosed. The screwdriver includes a body, a screwing arm, a clamping arm, and a clamping device. The body is similar to an ordinary hand drill. A torque shaft, a part of the screwing arm, is connected to the body at one end, and it has a socket for a self-drilling screw at the other end. The clamping arm is movably connected to the body, and it has a clamping head at one end. The clamping device will clamp two or more members between the screw and the clamping head during the screw driving process.