An electrical power generating system, comprising: a mechanical energy input source; a direction transferring module connected to the mechanical energy input source, the direction transferring module comprising a first output and a second output respectively arranged at two lateral sides of the direction transferring module; a first electrical generator connected to the first output of the direction transferring module; a second electrical generator connected to the second output of the direction transferring module; a power storage module connected to both of the first electrical generator and the second electrical generator to receive the electrical energy generated by the first electrical generator and the second electrical generator; wherein the first electrical generator and the second electrical generator each comprises: a supporting mechanism comprising a groove; two shaft fixing mechanisms configured on two opposite sides of the groove; a central shaft which comprises a strip-shaped rib or a strip-shaped groove, passes through the shaft fixing mechanisms and is connected to the first output or the second output; two disk fixing mechanisms configured on the other two sides of the groove, each of the disk body fixing mechanisms further including a plurality of C-shaped restricting members; and an electric disc body module being passed through by the central shaft, and wherein the electric disk body module is partially fixed on the disk fixing mechanisms; wherein the electric disk body module further comprises: a plurality of bearings spaced apart from each other on the central shaft; a plurality of coil stator disks, wherein each of the stator disks is configured with two fixing wings symmetrical to each other, and each of the stator disks is arranged on each of the bearings in sequence; a plurality of rotor disks, and wherein each of the rotor disks is configured with an engaging groove or an engaging rib respectively corresponding to the strip-shaped rib or the strip-shaped groove, and the rotor disks and the coil stator disks are alternately stacked; and wherein the two fixing wings of each of the stator disks are simultaneously engaged with two C-shaped restricting members from the plurality of C-shaped restricting members, such that only the plurality of rotor disks rotates along with the central shaft when the electric disk body module is driven to rotate by the central shaft. a mechanical energy input source; a direction transferring module connected to the mechanical energy input source, the direction transferring module comprising a first output and a second output respectively arranged at two lateral sides of the direction transferring module; a first electrical generator connected to the first output of the direction transferring module; a second electrical generator connected to the second output of the direction transferring module; a power storage module connected to both of the first electrical generator and the second electrical generator to receive the electrical energy generated by the first electrical generator and the second electrical generator; wherein the first electrical generator and the second electrical generator each comprises: a supporting mechanism comprising a groove; two shaft fixing mechanisms configured on two opposite sides of the groove; a central shaft which comprises a strip-shaped rib or a strip-shaped groove, passes through the shaft fixing mechanisms and is connected to the first output or the second output; two disk fixing mechanisms configured on the other two sides of the groove, each of the disk body fixing mechanisms further including a plurality of C-shaped restricting members; and an electric disc body module being passed through by the central shaft, and wherein the electric disk body module is partially fixed on the disk fixing mechanisms; wherein the electric disk body module further comprises: a plurality of bearings spaced apart from each other on the central shaft; a plurality of coil stator disks, wherein each of the stator disks is configured with two fixing wings symmetrical to each other, and each of the stator disks is arranged on each of the bearings in sequence; a plurality of rotor disks, and wherein each of the rotor disks is configured with an engaging groove or an engaging rib respectively corresponding to the strip-shaped rib or the strip-shaped groove, and the rotor disks and the coil stator disks are alternately stacked; and wherein the two fixing wings of each of the stator disks are simultaneously engaged with two C-shaped restricting members from the plurality of C-shaped restricting members, such that only the plurality of rotor disks rotates along with the central shaft when the electric disk body module is driven to rotate by the central shaft. a plurality of bearings spaced apart from each other on the central shaft; a plurality of coil stator disks, wherein each of the stator disks is configured with two fixing wings symmetrical to each other, and each of the stator disks is arranged on each of the bearings in sequence; a plurality of rotor disks, and wherein each of the rotor disks is configured with an engaging groove or an engaging rib respectively corresponding to the strip-shaped rib or the strip-shaped groove, and the rotor disks and the coil stator disks are alternately stacked; and wherein the two fixing wings of each of the stator disks are simultaneously engaged with two C-shaped restricting members from the plurality of C-shaped restricting members, such that only the plurality of rotor disks rotates along with the central shaft when the electric disk body module is driven to rotate by the central shaft.