Method for routing distribution of satellite channel

The invention provides a method for routing distribution of a satellite channel. After an effective load device accesses a Spacewire bus network, a satellite conducts polling on the effective load device through a bus controller, reads an electronic data table at a load end and obtains data transmission rates of loads, then the bus controller compares any two channels of a plurality of obtained channel of effective loads or the sum of a plurality of data transmission rates with the transmission rate of a destination address A or the transmission rate of a destination address B, as per the principle that the load transmission rate in the Spacewire bus network must be lower than the transmission rate of the destination address A of a router or the transmission rate of the destination address B of the router, routing paths are distributed for loads according to the comparison results, after the routing distribution is finished, effective loads send data packets to the router through set transmission paths. By the aid of the method, the Spacewire bus based plug and play function of the satellite can be implemented, and the requirements of channel design of the Spacewire bus plug and play function can be met.