As　the　operating　temperature　of　the　motor　increases,　the　material　properties　will　be　seriously　affected,　such　as　soft　magnetic　materials,　hard　magnetic　materials,　and　winding　insulation　properties.　For　high-speed　permanent　magnet　motors,　the　higher　loss　density　and　smaller　heat　dissipation　area　make　the　impact　of　temperature　more　serious.　However,　according　to　the　test　standard,　the　magnetic　properties　are　usually　measured　at　room　temperature,　ignoring　the　effect　of　temperature.　To　accurately　design　magnetic　devices,　it　is　necessary　to　understand　the　behavior　of　magnetic　materials　at　different　temperatures.　In　this　article,　a　new　high-speed　permanent　magnet　claw-pole　motor　with　soft　magnetic　composite　for　a　wide　temperature　range　is　proposed.　The　design　process　mainly　includes　the　calculation　and　analysis　of　material　temperature　characteristics,　bearing　support,　topological　structure,　rotor　stress　calculation,　and　so　on.　Finally,　a　prototype　is　manufactured　and　tested　to　verify　the　design　process.　©　1972-2012　IEEE.