The Tethered Drone System with Smart Hangar utilizes an ultra-compact drone equipped with a 150W LED light, delivering a brightness of 20,000 lumens. It can hover and provide illumination at a 10-meter altitude, covering an area of 1,200 to 12,000 m², with support for RTK centimeter-level positioning and resistance to wind and rain. The system can be deployed in fixed, vehicle-mounted, or ship-borne configurations. It supports remote control or fully autonomous operation.