The　measurement　of　the　internal　temperature　rise　of　high-frequency　magnetic　components　is　of　key　significance　in　the　design,　application,　and　safety　regulation　of　magnetic　components.　However,　the　eddy　current　loss　at　the　metal　end　of　the　thermocouple　will　bring　a　large　additional　temperature　rise,　which　distorts　the　temperature　rise　measurement　in　the　part　with　high　frequency　magnetic　field　for　the　high-frequency　magnetic　element.　Firstly,　this　paper　tests　the　additional　temperature　rise　of　thermocouples　with　different　sizes　at　different　frequencies.　Through　the　analysis　of　the　results,　the　influencing　factors　and　degree　of　temperature　rise　error　are　clarified,　which　is　helpful　to　select　the　appropriate　thermocouple　according　to　the　working　frequency　in　the　actual　measurement　and　evaluate　and　correct　errors.　In　order　to　further　deduct　the　unpredictable　influence　of　high-frequency　magnetic　field　environment　on　thermocouples,　this　paper　proposes　to　correct　the　additional　temperature　rise　of　thermocouples　caused　by　eddy　current　loss　by　using　the　cooling　process　curve　of　magnetic　components　after　power　failure　and　combined　with　the　thermal　circuit　model　of　the　cooling　process.　At　the　same　time,　the　neural　network　method　is　proposed　to　deduce　the　actual　temperature　rise　of　the　measured　point　deducting　the　additional　temperature　rise　of　the　thermocouple　before　the　data　prediction　of　the　cooling　characteristic　curve,　so　as　to　realize　the　accurate　measurement　of　the　hot　spot　temperature　rise　in　the　magnetic　element　under　the　high-frequency　magnetic　field.　©　2017　CPSS.