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Analyzed the structure of VxBus driver and the normal design procedure of VxBus driver on VxWorks system. Configured the VxBus diver which is already supported by VxWorks, such as the serial and the clock driver. The design of interrupt is divided into three layers, the MIPS interrupt, the Loongson 1E interrupt and the Loongson 1F interrupt. The three interrupt layers are nested and connected by board support package(BSP) hardware configuration. Designed a smart 1553B VxBus dirver to use the 1553B function supported by Loongson 1F. Application layer can call the driver methods to perform 1553B function easily and ignore the hardware details. The result shows that VxBus design on Loongson aerospace platform simplify the software design of application layer and makes the software structure much more clear and the system planting easier. The VxBus driver design method has high value for aerospace engineering based on Loongson and VxWorks system.