The invention discloses an electric power tunnel intelligent patrol robot. The electric power tunnel intelligent patrol robot comprises a rail walking mechanism; a chassis is mounted at the bottom of the rail walking mechanism; a light replenishing LED lamp, gas detecting and temperature detecting probes and a ultrasonic sensor are mounted at the front end of the chassis; a communication system, a smoke sensor, a control system and a wireless transreceiver system are mounted in the chassis; a camera is mounted at the bottom of the chassis; a swing frame is mounted at the bottom of the chassis, and is positioned behind the camera; the swing frame is hinged to the chassis through a rotating shaft; a transparent cover fixed sleeve is mounted at the back end of the swing frame; a transparent cover is mounted on the transparent cover fixed sleeve, and is positioned at the back end of the chassis; and an opening of the transparent cover is downwards. The set of system can replace a traditional tunnel fire automatic warning system, video and environmental monitoring and matched communication facilities. The electric power tunnel intelligent patrol robot can quickly finish comprehensive patrol monitoring of whole tunnel, and has prominent advantages on patrol efficiency and disaster treatment efficiency compared with a traditional mode.