A power generating structure comprises a front magnetic disc, a rear magnetic disc, and a coil disc disposed between the front and the rear magnetic discs. The coil disc is provided with a plurality of coil units radially arranged. Each coil unit includes a plurality of coils each with different turns of insulated wire. The front and the rear magnetic discs are respectively provided with a plurality of magnetic elements radially arranged. The coil disc is fixed to a shaft at a center thereof. The shaft extends outwardly from the rear magnetic disc. A plurality of blades can be attached to a periphery of the front or the rear magnetic disc. Therefore, the blades can be driven to rotate the front and the rear magnetic discs to have the coils of coil units continuously induced different voltages by the magnetic elements to supply various equipment.