In order to improve the operational capability of aircraft weapon,FC network shall be applied in high speed up/down communication paths of the aircraft/store.The relations of FC network standard of Aircraft/Store (AS5653) with FC-AE-1553,FC-AV,FC-FS,and FC-SW are presented.The composition and main technical requirements of AS5653 are studied.The key technologies in aircraft/store FC network design,including network topology and port layout,communication modes,network initialization and high-level protocol,are also analyzed,which can be taken as a reference for development of FC network in aircraft/store.