Abstract:According to the characteristics of SpaceWire data communication, put forward is a method of realizing SpaceWire communication card. Based on the research of the SpaceWire and PCIe bus technology, it is proposed to use PCIe to implement the communication between SpaceWire node and satellite computer on the basis of RMAP_IP core. The design of the hardware of SpaceWire communication card is mainly introduced and the driver and application programs are designed to certificate the card’s function. Experiments show that the communication card owns the advantages of small dimension, simple operation, low power consumption and wide applications. It can implement the function of communication between SpaceWire device and computer and can be used for realtime monitoring of SpaceWire netwok communication status.