Abstract: In order to reduce network maintenance costs and unify network architecture, a multi-protocol convergence network oriented to FC is realized, the design scheme and implementation method of IP over FC gateway are presented, and the system architecture and data processing flow of embedded gateway based on FPGA are introduced in detail. The simulation and analysis of the frame format conversion and address mapping between Gigabit Ethernet and FC are carried out, and the preliminary engineering verification is carried out in combination with the specific application scenario of the manned spacecraft. The results show that the embedded gateway efficiently realize the data frame analytical and routing, the minimum delay of protocol conversion is 25μs, which perfectly realize FC and Gigabit Ethernet seamless convergence and protocol conversion.