The invention discloses a topology structure of a duplex-winding asynchronous-motor direct current starting power generation system, especially relates to the duplex-winding asynchronous-motor direct current starting power generation system used for providing power for a multi-electric aircraft and belongs to the direct current power generation technology field. The topology structure comprises a first multiphase duplex-winding asynchronous-motor direct current power generation unit integrated on a multi-electric engine high voltage shaft, a second multiphase duplex-winding asynchronous-motor direct current power generation unit integrated on a multi-electric engine low voltage shaft and a starting power generation driving unit possessing two sides of power output terminals. Multiphase DWIG units which are used for direct current power generation are integrated and installed on the high voltage shaft and the low voltage shaft of a multi-electric motor of the multi-electric aircraft respectively, system reliability is increased and a demand of electricity diversification of the multi-electric aircraft is satisfied.