The　adhesion　between　self-lubricating　coatings　and　substrates　is　a　crucial　indicator　for　assessing　self-lubricating　sliding　bearing　production　quality.　Poor　adhesion　exacerbates　coating　wear.　Hence,　evaluating　the　adhesion　properties　of　the　self-lubricating　coating　is　essential　to　ensure　the　healthy　service　of　bearings　in　critical　applications.　However,　conventional　destructive　testing　methods　for　adhesion　properties　is　difficult　to　consider　both　of　global　and　local　evaluation　of　self-lubricating　coatings,　and　have　challenges　in　comprehensively　analyzing　the　inhomogeneous　adhesion　distribution　of　self-lubricating　coating　interfaces.　In　this　study,　we　explore　a　terahertz　nondestructive　testing　method　for　evaluating　the　adhesion　properties　of　self-lubricating　bearing　coatings.　By　investigating　the　propagation　of　terahertz　waves　in　coating　structures,　we　find　the　terahertz　reflection　can　respond　to　adhesion　interface　condition,　and　mapping　the　reflection　coefficients　distribution　enables　comprehensive　visualization　of　the　adhesion　interface　conditions　nondestructively.　Further,　the　adhesion　work　derived　coefficient　based　on　scratch　test　is　used　to　reflect　the　condition　of　the　adhesion　interface.　The　comparison　results　demonstrate　a　strong　positive　correlation　between　terahertz　reflection　coefficients　at　the　adhesion　interface　and　adhesion　work　derived　coefficients,　which　indicates　that　the　reflection　loss　of　terahertz　waves　at　the　adhesion　interface　with　good　adhesion　is　minor.　The　proposed　method　for　coating　adhesion　properties　is　validated　regarding　the　applicability,　which　offers　a　novel　evaluation　approach　for　adhesion　properties　of　self-lubricating　coatings.　©　1963-2012　IEEE.