The embodiment of the invention discloses a high-power fiber laser ice melting system, which is applied to ice melting on an overhead line, and is characterized by comprising a laser emitting module,a monitoring module, a distance measurement module, an optical zooming module, a tracking and aiming module and a turntable, wherein the laser emitting module is used for melting the ice coating the overhead line; the monitoring module is used for obtaining monitoring data related to the overhead line at a far end in real time; the distance measurement module is used for generating a distance parameter according to the monitoring data; the optical zooming module is used for adjusting the focal length of the laser emitted by the laser emitting module; the tracking and aiming module is used foradjusting the direction of the laser emitted by the laser emitting module in real time; and the turntable is used for changing the irradiation direction and position of the laser. Through the ice melting system provided by the invention, the ice melting efficiency can be greatly improved, the ice melting cost is reduced, and meanwhile, the working risk of an electric worker is greatly reduced.