The invention discloses a live-line operation remote inspection system, which comprises a remote control terminal and a mobile measurement terminal, wherein the mobile measurement terminal comprises a controller, a communication device, a laser ranging device and an image acquisition device; the laser ranging device is used for acquiring a first height from a first type fault point to the ground surface and a first width of a first road; the image acquisition device is used for acquiring first image information; the controller is connected with the communication device, the laser ranging device and the image acquisition device; the communication device allows the mobile measurement terminal to perform data interaction with a remote terminal; the control terminal selects construction equipment conforming to a trouble shooting condition according to the first height, the first width and the first image information; and the controller is used for driving the communication device, the laser ranging device and the image acquisition device. The live-line operation remote inspection system can automatically measure the height of a fault point, and is high in measuring efficiency and safety.