To　solve　the　problem　of　complex　operating　device　and　permanent　magnets　(PMs)　demagnetization　at　high　temperature,　a　new　type　of　permanent　magnet　fluxed-switching　coupler　(PMC)　with　synchronous　rotating　adjuster　is　proposed.　Its　torque　can　be　adjusted　by　rotating　a　switched　flux　angle　between　the　adjuster　and　PMs　along　the　circumferential　direction.　The　structural　feature　and　working　principle　of　the　PMC　are　introduced.　The　analytical　model　of　the　novel　PMC　was　established.　The　torque　curves　are　calculated　in　transient　field　by　using　the　three-dimensional　finite　element　method　(3-D　FEM).　The　temperature　distribution　of　the　novel　PMC　under　rated　condition　is　calculated　by　3-D　FEM,　and　the　temperature　distribution　of　the　PM　is　compared　with　that　of　the　conventional　PMC.　The　simulation　and　test　results　show　that　the　maximum　temperature　of　copper　disc　and　PM　of　the　novel　PMC　are　100　degrees　C　and　48　degrees　C　respectively.　The　novel　PMC　can　work　stably　for　a　long　time　under　the　maximum　load　condition.