Under　the　effect　of　current　and　voltage,　multiple　physical　fields　will　generate　in　and　near　electrical　equipment,　such　as　electromagnetic　field,　temperature　field,　fluid　field,　and　stress　field,　etc.　These　fields　will　militate　against　the　dielectric　medium,　the　magnetic　medium　and　the　conductor,　which　are　three　main　types　of　materials　constituting　the　electrical　equipment.　For　example,　they　will　make　an　insulating　material　deteriorated　gradually　due　to　the　effects　of　electricity,　heat　and　stress,　saturate　the　permeability　magnetic　material　and　lead　to　harmonic　generation,　and　cause　relative　movements　between　conductors　in　motor　equipment,　thus　to　complete　electromechanical　energy　conversion.　These　physical　fields　(electromagnetic,　temperature,　fluid,　stress,　motion　and　insulation)　are　coupled　and　interact　with　each　other　to　construct　complex　multiphysical　coupling　fields.　Firstly,　this　paper　briefly　reviews　the　contributions　made　by　the　field　of　electrical　engineering　in　China　to　the　development　of　computational　electromagnetism,　and　points　out　that　electromagnetic　multiphysical　field　analysis　plays　a　role　through　the　whole　life　process　of　material　development,　design　and　manufacture,　operation,　and　maintenance　of　electrical　equipment.　It　is　the　＇hard　core＇　that　determines　the　economy　and　reliability　of　electrical　equipment.　Then,　several　key　technologies　in　coupled　numerical　calculation　of　electromagnetic　multiphysical　fields　and　moving　eddy　current　field　in　electrical　equipment　are　introduced　respectively.　This　paper　specially　points　out　that　the　discharge　voltage　calculation　or　prediction　of　insulating　materials　is　an　important　component　of　electromagnetic　multiphysical　field　simulation　and　needs　to　be　strengthened.　Further,　based　on　the　development　demands　of　intelligent　operation　and　maintenance　of　electrical　equipment,　this　paper　introduces　the　latest　achievements　in　applications　of　electromagnetic　multiphysical　field　analysis　for　intelligent　inversion　detection　of　hot　spot　temperature　rise　and　material　parameters　of　electrical　equipment.　Finally,　an　idea　is　proposed　to　develop　an　independent　software　platform　for　electromagnetic　multiphysical　field　analysis　of　electrical　equipment.　©　2020,　High　Voltage　Engineering　Editorial　Department　of　CEPRI.　All　right　reserved.