For the special experiment data acquire and analysis of aviation and spaceflight,this paper puts forward a design of a gigabit Ethernet interface based on FPGA of high speed data communication recording system,which describes function design,hardware design,interface design,embedded software design detailly,communicating with the system through the communication interface.The system can record data to the nonvolatile memory in the process of communication,afterwards,through the data interface output data to PC to complete the data processing and analysis.