Efficient automatic screwdriver

The invention provides an efficient automatic screwdriver. The efficient automatic screwdriver comprises a screwdriver rod, an upper handle and a rotating cylinder. The upper end of the screwdriver rod is sleeved with an upper bearing, and a screwdriver head is arranged at the lower end of the screwdriver rod. A lead screw is arranged in the middle of the screwdriver rod. The middle of the screwdriver rod is sleeved with the rotating cylinder, and the rotating cylinder is in threaded connection with the screwdriver rod. The upper bearing is fixed in the upper handle. The rotating cylinder moves up and down to drive a guide rod to rotate. The efficient automatic screwdriver has the beneficial effects that the screwdriver rod and the rotating cylinder form a ball screw structure, the linearmotion of the rotating cylinder is converted into the rotating motion of the screwdriver rod, and when a screw is assembled and disassembled, only the rotating cylinder needs to be moved; the efficient automatic screwdriver h