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In order to satisfy the general test requirements for launch vehicle control equipments , we designed the 1553B and UART PXI bus board applied in aerospace test field. The main function, the constitution , the working principle, the hardware design ,the board driver program based on Windows or VxWorks operating system, the user application software are described。The experiments show that the PXI bus board is reasonable in design , high reliability, good result for performance and measurement of parameters test. It can flexibly realize 1553B bus and multi-channel RS-232 or RS-422 or RS-485 serial communication function . The board has been successfully used in testing of some electronic devices.