The　harm　of　gear　grinding　burn　is　analyzed　and　a　variety　of　detection　methods　and　characteristics　of　gear　grinding　burn　are　summed　up　and　compared　in　this　paper.　These　methods　can　be　divided　into　prior　detection　methods　and　post　detection　methods　according　to　the　chronological　order　of　the　detection　and　grinding　burn.　Prior　detection　methods　include　critical　constant　method,　ratio　method　of　grinding　force,　grinding　temperature　monitoring,　and　neural　network　for　predicting　grinding　burns.　Post　detection　methods　include　destructive　detection　methods　such　as　acid　corrosion　method,　the　surface　microhardness　test,　metallographic　test,　metamorphic　layer　depth　and　nondestructive　detection　methods　such　as　visual　inspection,　X-ray　diffraction　residual　stress　test,　component　analysis,　eddy　current　testing,　CCD　image,　magnetoelastic　method,　online　acoustic　emission　monitoring.　The　research　also　investigated　the　existing　detection　methods　for　gear　grinding　burn,　discussed　the　scope　of　applications　and　the　limitations,　and　furthermore　revealed　the　developing　direction　of　detection　methods　for　gear　burn.　©　2017,　Science　Press.　All　right　reserved.