The invention relates to a power communication hierarchical routing path determining method comprising the following steps: clustering low- and high-orbit satellites in a power communication network topology; when the source satellite node and the destination satellite node of a packet are in the same cluster, determining a final packet forwarding path from the source satellite node generating the packet to the destination satellite node receiving the packet for the intra-cluster packet based on an ant colony algorithm; and when the source satellite node and the destination satellite node of a packet are not in the same cluster, taking a path for transmitting the packet from the source satellite node to a high-orbit satellite, a packet forwarding path for an inter-cluster packet in the high-orbit satellite to reach a relay destination satellite node from a relay source satellite node and a path for transmitting the high-orbit satellite to the destination satellite node as the final packet forwarding path from the source satellite node generating the packet to the destination satellite node receiving the packet for the inter-cluster packet. The method can be used to jointly optimize the communication performance of the system, and is advantageous in communication.