Bus for useful load subsystem data transmission

The utility model discloses a bus for useful load subsystem data transmission, which comprises a bus control terminal BC, a bus terminal RT, and a bus used for being connected between the BC and the RT. The bus control terminal BC and the bus terminal RT are simultaneously connected onto the bus; the bus control terminal BC is used for receiving remotely sensed data sent by the bus terminal RT through the bus and transmitting the data to an upper computer, and simultaneously sending control command of the upper computer to the bus terminal RT through the bus; and the bus terminal RT is served as a useful load subsystem of a satellite and used for gathering remotely sensed data of the satellite and sending the data to the bus control terminal BC through the bus, and simultaneously receiving control command sent by the bus control terminal BC through the bus. The bus effectively reduces the quantity of cables of the useful load subsystem in a communication capsule.