Electric cable well and control method thereof

The invention provides an electric cable well and a control method thereof. The electric cable well comprises a well body and a well lid, and further comprises a controller, a plurality of oxygen generators and oxygen concentration detectors, a pressure sensor, a blower, a pipeline, a plurality of harmful gas detectors, and red and green warning lamps, wherein the oxygen generators and the oxygen concentration detectors are mounted on a wall inside the well body, the pressure sensor is arranged below the well lid and can detect the pressure when the well lid is removed for opening, the blower is mounted at the bottom of the well body, the pipeline is connected with the blower, the air outlet of the pipeline is formed in the bottom of the well body, the harmful gas detectors are arranged on the inner wall of the well body, the red and green warning lamps are arranged on the well lid, the oxygen generators, the oxygen concentration detectors, the pressure sensor, the blower, the harmful gas detectors and the re