Offshore wind plant resident unattended operation and maintenance system and method based on 5G

The invention discloses a 5G-based offshore wind power plant resident unattended operation and maintenance system, which comprises an unmanned aerial vehicle and a wall-climbing robot, and is characterized in that the unmanned aerial vehicle carries a camera and is used for carrying out routing inspection and investigation on blades and a tower of a wind generating set; the wall-climbing robot carries an ultrasonic flaw detection instrument, a high-definition camera, a repairing tool and a dirt removing tool and is used for maintaining and repairing the tower and conducting auxiliary detection. The unmanned aerial vehicle and the wall-climbing robot are provided with resident hangars, and the resident hangars are provided with environment maintenance equipment. The unmanned aerial vehicle and the wall-climbing robot are used as operation and maintenance tools, the unmanned aerial vehicle and the wall-climbing robot are provided with an unattended resident hangar, the unmanned aerial vehicle and the wall-climb