The invention discloses a ground tamping device for electric power engineering construction. The ground tamping device comprises a bottom plate, universal wheels, a handrail frame and a box. A cavity is formed in the middle of the bottom plate, the universal wheels are arranged under the bottom plate, the handrail frame is arranged on one side of the bottom plate, the box is arranged above the bottom plate and fixed to the bottom plate through supporting rods, a horizontal moving device and a height adjusting device are arranged in the box, and the height adjusting device is arranged above the horizontal moving device; the two sides of the lower part of the height adjusting device penetrate through the horizontal moving device, the height adjusting device moves up and down on the horizontal moving device, and the height adjusting device is provided with a tamping device which is connected to the bottom of the height adjusting device. A driving motor rotates by one circle, so that the ground is tamped many times, the ground tamping height can be adjusted through the height adjusting device, and thus the tamping effect and work efficiency are improved.