The　intelligent　component　for　HV　GIS　is　defined　as　physical　device　that　can　be　flexibly　configured　and　is　assembled　by　one　or　several　function　units,　in　IEC　61850　which　is　the　only　international　standard　in　smart　substation　system.　It　can　be　used　to　replace　the　traditional　GIS　control　cabinet.　This　paper　presented　a　design　of　intelligent　component　for　HV　GIS,　especially　the　IEC61850　communication　interface.　The　intelligent　component　adopts　decentralized　control　topology　to　realize　the　online　monitoring　of　primary　equipment,　and　it　has　such　functions　as　human-machine　interface,　local　or　remote　control,　logic　interlocking　and　the　most　important　IEC61850　communication　interface.　It　is　mainly　based　on　ARM-Linux　embedded　operating　system　using　modular　structure　design.　The　realization　of　the　intelligent　component　modeling,　included　IED　functional　analysis,　LN　design,　DATA　design,　LD　design　and　Service　model　design　are　discussed.　The　IEC6180　GOOSE　messages　and　publisher-subscriber　model　have　been　adopted　to　realize　the　communication　between　the　different　intelligent　components　on　the　Local　Area　Network　according　to　IEC61850　standards.　The　intelligent　component　will　increase　the　reliability,　efficiency,　intelligent　of　the　primary　equipment　such　as　HV　GIS　significantly.　©　2011　IEEE.