The invention discloses a handheld device for vertically pulling an iron nail. The handheld device for vertically pulling the iron nail comprises two clamps, a clamp fixing seat, a pin shaft, a spring, a steel rope, a pulley, a handle, a switch, a motor, a worm, a gear, a transmission wheel, a connecting rod, a pull block and a case. The two clamps rotate on the clamp fixing seat through the pin shaft. The clamps and the clamp fixing seats slide in the case. One end of the steel rope is connected with the clamps, and the other end of the steel rope is connected with the pulling block. The pulling block move downwards to drive the clamps and the clamp fixing seat to slide upwards through the steep rope. The motor drives the worm, the gear and the transmission wheel to rotate so as to enable the pulling block to slide up and down through the connecting rod. According to the structure, the two clamps are opened and placed at the to-be-pulled iron nail, the motor is started to drive the pulling block to move downwards, the clamps are pulled through the steep rope to clamp the iron nail, and then the clamps continue moving upwards to vertically pull out the iron nail. The handheld device for vertically pulling the iron nail has the beneficial effects that the iron nail can be vertically pulled out, accordingly the building construction cost is reduced, the efficiency is improved, the resources are saved, and meanwhile the handheld device for vertically pulling the iron nail is simple in structure and convenient to operate.