Overhead line grounding ranging device

The invention provides an overhead line grounding ranging device which comprises a casing. The front of the casing is connected with a front panel. A laser emitting device is arranged at the upper part of one side of the front of the front panel. A laser receiving device is arranged on one side of the laser emitting device. The front center of the laser emitting device is connected with a laser emitting head. A probe mounting plate is arranged on the lower side of the laser emitting device. An ultrasonic ranging probe is arranged at the front center of the probe mounting plate. The upper side of the back center of the casing is connected with a fixation ring. Another fixation ring is arranged on the lower side of the back center of the casing. Each fixation ring is provided with an opening. A solar panel is arranged on one side of each fixation ring. The back of each solar panel is connected with the back of the casing. An electric conversion box is arranged on the other side of each fixation ring. According to the invention, since the distance between an overhead line and the ground is high, laser and ultrasonic waves are used for ranging, which is convenient for ranging.