The utility model discloses a wireless high-voltage electroscope, and the electroscope comprises a pistol-type housing. The housing is provided with a laser transmitter and a liquid crystal display screen. The muzzle at the front end of the housing is provided with a detection probe, and the rear end of the housing is provided with a position change-over switch and a power switch. The front end of the stock of the pistol-type housing is provided with a wrench-shaped detection switch, and the rear end of the stock of the pistol-type housing is provided with a laser switch. The interior of the housing is provided with a circuit board with a chip, and is also provided with a lithium ion battery. The lithium ion battery is connected with the power switch, the position change-over switch, the circuit board, the detection switch, the detection probe, the laser switch, the laser transmitter and the liquid crystal display screen through wires. The circuit board is connected with a buzzer through a wire. The electroscope provided by the utility model can achieve the all-weather, full-voltage, remote and non-contact detection of a high-voltage overhead line with an alternating-current voltage from 10 kv to 500 kv and high-voltage electric equipment, and can judge whether the high-voltage overhead line and the high-voltage electric equipment are electrified or not, thereby greatly improves the safety, reliability, applicability and convenience of detection.