Cable plastic pipeline repairing robot and repairing method

The invention discloses a cable plastic pipeline repairing robot and a repairing method, and relates to the technical field of power supply maintenance. The cable plastic pipeline repairing robot comprises a frame and a walking track, and the walking track is arranged at the bottom of the frame and used for driving the repairing robot to walk in an old pipeline; an ejection mechanism and an angle adjusting mechanism are arranged at the front end of the frame; the ejection mechanism comprises an ejection hydraulic cylinder and a supporting plate, and the supporting plate is fixedly connected with the telescopic end of the ejection hydraulic cylinder and used for ejecting out the plastic protection pipe in the old pipeline; the angle adjusting mechanism is arranged between the frame and the ejection mechanism and is used for driving the ejection mechanism to rotate left and right and swing up and down; a traction seat for mounting a traction rope is arranged on the rear side of the top of the frame. According t