Aiming　at　the　detection　of　grinding　burn　of　high　performance　bevel　gear　after　grinding,　the　automatic　detection　device　for　grinding　burn　of　bevel　gear　tooth　surface　is　developed.　The　detection　device　is　composed　of　mechanical　structure,　Barkhausen　noise　detection　module　and　test　software.　The　detection　device　completely　relies　on　the　mechanical　system　and　electrical　system　of　bevel　gear　tester　to　realize　automatic　detection.　The　mechanical　structure　shares　fixture　with　gears,　by　introducing　flexible　shaft　design,　which　can　meet　the　requirements　of　a　variety　of　bevel　gear　detections.　And　the　detection　process　of　spiral　bevel　gear　can　be　simplified.　AST　RollScan350　magnetic　elastic　instrument　is　employed　to　collect　the　Barkhausen　noise　signal　of　measured　bevel　gear.　The　collected　signals　are　analyzed　using　detection　software　run　in　the　host　computer.　Experimental　results　indicate　the　high　repeatability　of　the　detection　device　for　quality　control　in　gear　production.　©　2017,　Science　Press.　All　right　reserved.