Power-generating basketball

The invention discloses a power-generating basketball. The power-generating basketball comprises coils, a spherical permanent magnet, a spherical insulating shell, a transformation power-storing device and an external charging interface. The interior of the basketball is divided into three layers, wherein the outer most layer is a yarn winding layer of the basketball, and a plurality of turns of irregular coils are distributed on the outer most layer; the middle layer consists of a basketball liner and a spherical insulating body, the permanent magnet is arranged in the middle layer, and the middle layer is the moving space of the permanent magnet; the left layer is the inner most layer, and the transformation power-storing device is arranged in the inner most layer. By the electromagnetic induction principle, when the basketball moves, the permanent magnet and the coils are not in a relative rest state any more, the permanent magnet freely moves in the middle layer, and the coils cut magnetic induction lines, so that induced voltage is generated. The functions of boosting, filtering and stabilizing the induced voltage can be realized by the transformation power-storing device. The output end of a storage battery is led to the outer surface of the basketball to serve as the charging interface of external electronic equipment. The power-generating basketball is simple in structure and convenient to operate, and a power-generating process is environment-friendly and does not cause environmental pollution.