High voltage transmission line warning device

The utility model discloses a high voltage transmission line warning device which is arranged on a high voltage transmission line and comprises a radar component. The radar component comprises a transmitter, a transmitting antenna, a receiver, a receiving antenna, a processor, a display and a power supply. The power supply is connected with a current transformer which takes electricity from the high voltage transmission line through a power supply circuit. The processor is connected with an alarm device. The alarm device comprises a voice alarm horn and a warning lamp. According to the high voltage transmission line warning device, when the radar detects that the distance between a super high vehicle or a large construction machine and the high voltage transmission line is too close, a voice alarm can be initiatively sent out to warn a driver; and compared with a simple flashing light, power grid safety accidents can be effectively prevented and reduced.