The present invention provides a gravity power generating apparatus comprising a set of a plurality of magnetic heavy objects; a generator for generating electrical power by rotating a rotor of the generator, wherein the rotation of the generator is accomplished by having each heavy object to pass through a gravity route; a delivery route for delivering each heavy object to drive each heavy object to pass through the gravity route; a delivery route motor for supplying power for the delivery route; and a plurality of magnetic elements provided around the gravity route, wherein each magnetic element is wound around with a coil on the surface so that an electrical current is generated in the coil to supply to the delivery route motor.