A split serial-parallel hybrid dual-power drive system, comprised of two or more separation drive systems allowing independent operation to respectively drive a load, or all loads driven individually are incorporated in a common frame comprising the following features: a first drive system, installed with an active rotation power source, for driving a first electrical machinery unit for providing a power generation function; a second drive system, installed with a second electrical machinery unit for providing an electrical motor function, for driving a load applied on the second drive system; a clutch positioned between the active rotation power source of the first drive system and the second drive system, for performing operations of combining or terminating the rotation power between the active rotation power source and the second drive system; characterized in that operational functions of the dual-power drive system include one or more of the following: through controlling manually or by a control system, the generated electricity from the first electrical machinery unit driven by the active rotation power source through a drive control unit drives both or one of the second electrical machinery unit installed at the first drive system and the second electrical machinery unit installed at the second drive system, thereby to perform a light-load operation for driving for driving the adapted load of both or one of the first drive system and second drive system, or through controlling manually or by a control system, both or one of the further clutch and the clutch, the load applied on both or one of the first drive system and the second drive system is driven by the mechanical rotation kinetic power of the active rotation power source. a first drive system, installed with an active rotation power source, for driving a first electrical machinery unit for providing a power generation function; a second drive system, installed with a second electrical machinery unit for providing an electrical motor function, for driving a load applied on the second drive system; a clutch positioned between the active rotation power source of the first drive system and the second drive system, for performing operations of combining or terminating the rotation power between the active rotation power source and the second drive system; characterized in that operational functions of the dual-power drive system include one or more of the following: through controlling manually or by a control system, the generated electricity from the first electrical machinery unit driven by the active rotation power source through a drive control unit drives both or one of the second electrical machinery unit installed at the first drive system and the second electrical machinery unit installed at the second drive system, thereby to perform a light-load operation for driving for driving the adapted load of both or one of the first drive system and second drive system, or through controlling manually or by a control system, both or one of the further clutch and the clutch, the load applied on both or one of the first drive system and the second drive system is driven by the mechanical rotation kinetic power of the active rotation power source.