The invention discloses an alternating-direct current series-parallel port distribution network and a comprehensive dispatching control method thereof, and belongs to the field of port distribution power and distribution network automation. The distribution network comprises a general step-down station, a branch substation or a switch-on/switch-off station and various distribution subsystems; a multi-channel feeder of the general step-down station provides alternating current power for the various distribution subsystems through the branch substation or the switch-on/switch-off station; each distribution subsystem comprises a shore electronic system, a shore bridge subsystem, a field bridge subsystem, a power charging and converting station subsystem for electric port trailers, a new energy subsystem and a production life subsystem; each distribution subsystem utilizes an alternating current distribution transformer and an AC/DC converter to construct a direct current bus of the distribution subsystem, and the direct current buses of the distribution subsystems are in direct current interconnection through direct current interconnection protection switches; each distribution subsystem is internally provided with multiple sections of direct current buses, and the multiple sections of direct current buses are in direct current interconnection through direct current interconnection protection switches. According to the alternating-direct current series-parallel port distribution network and the comprehensive dispatching control method thereof, the optimal power supply and comprehensive dispatching control of the port distribution network can be achieved.