The　extent　of　extremely　high　temperature　is　expanding　under　global　climate　change.　The　adverse　effects　of　high　urban　temperatures　are　worsening,　presenting　great　danger　to　the　environment　and　human　society,　and　are　especially　pernicious　to　urban　human-　environment　compound　systems.　Adaptation　is　an　important　action　to　cope　with　the　extremely　high　temperature,　and　the　studies　of　high　temperature　vulnerability　coupled　with　the　adaptability　factors　have　become　the　international　hot　spots　and　research　frontiers.　Fuzhou　city,　one　of　the　high　temperature　cities　in　China,　was　evaluated　as　a　case　study　in　this　research.　Expert　evaluation,　analytic　hierarchy　process　(AHP),　geographical　spatial　analysis　technologies,　questionnaire　survey　and　orderly　multivariate　logistic　regression　analysis　were　used　to　reconstruct　the　spatial　evaluation　index　system　of　urban　high　temperature　susceptibility　of　coupling　adaptability.　In　this　study,　the　high　temperature　vulnerability　of　Fuzhou,　its　spatial　differentiation,　scale　dependence,　hot　spots　and　the　influencing　factors　of　adaptability　were　systematically　evaluated.　The　results　indicated　that:　(1)　Six　selected　indices,　namely　age,　housing　area,　out-of-home　cooling　frequency,　health　condition,　degree　of　medical　convenience　and　government　efforts　to　alleviate　the　high　temperature,　had　significant　impact　on　city　residents＇　adaptability.　(2)　The　spatial　distribution　of　urban　high　temperature　vulnerability,　exposure　and　adaptability　in　Fuzhou　showed　a　spatial　structure　of　＇core-　periphery＇,　and　the　high　temperature　vulnerability　of　Fuzhou　showed　the　semi-　enclosed　spatial　pattern　with　the　characteristics　of　＇high　near　the　outer　and　low　near　the　inner　area＇.　(3)　Under　the　same　background　of　regional　high　temperature　exposure　and　susceptibility,　the　adaptability　from　individual　to　community　and　city　government　could　significantly　change　the　spatial　distribution　of　urban　high　temperature　vulnerability.　The　research　results　are　expected　to　further　the　theoretical　progress　of　urban　high　temperature　vulnerability,　and　to　provide　the　basis　of　decision-making　for　Fuzhou　and　other　cities　of　the　same　category.　©　2017,　Science　Press.　All　right　reserved.