A satellite routing load balancing method based on event triggering

The invention discloses a satellite routing load balancing method based on event triggering, which comprises the following specific implementation steps of: when a satellite routes a received data packet, firstly sensing the change of the on-off state of a whole network inter-satellite link pre-stored by the satellite, triggering the updating of a routing table, and generating the routing table with the shortest path and the shortest path; Then determining a next hop for the data packet from the main hop and the alternative next hop through a main-standby switching strategy, flooding heavy-load link information to the whole network under the condition that the main hop and the alternative next hop are unavailable due to heavy load, and triggering other satellites in the whole network to update routing; And finally, determining a next hop for the data packet received by the satellite through a roundabout next hop strategy. According to the invention, the storage space is effectively saved, the network load can