The invention discloses a robot for conducting the groundwire polling of the high-tension transmission line, which is composed of an on-wire creeper part and an off-wire image receiving control part. The on-wire creeper part comprises a dual-wheel and double-arm suspension tackle, on-wire traveling vehicle body synchronously driven by single motor, a left and a right cameras mounted on the vehicle body, two image transmitters, wireless duplex communication control circuit, remote-control transceiver and battery. The off-wire image receiving control part is formed by a two-way image receiver, a two-way image grabbing card, an industrial-controlled machine, and a remote-control transceiver. The on-wire creeper part is suspended on the groundwire of the high-tension transmission line to conduct real-time shooting through the two-way cameras equipped on it, and then send the image shot to the off-wire image receiving control part through the wireless image transmitters; the off-wire image receiving control part receives the image signal, send the signal into the computer to conduct the image display and process, send command signals to the on-wire creeper part over the air so as to control the operation of the on-wire creeper part.