Mechanical　properties　of　heat-treated　rock　after　the　cooling　treatment　directly　influence　the　exploration　and　development　of　underground　space　and　resources,　storage　of　nuclear　waste　and　stability　evaluation　of　underground　engineering　after　the　high　temperature　disaster.　Uniaxial　compression　and　acoustic　wave　tests　were　conducted　on　heat-treated　marble　samples　under　the　conditions　of　natural　cooling　and　water　cooling.　Then,　the　variations　of　peak　strength,　elastic　modulus,　attenuation　coefficient,　longitudinal　wave　velocity　and　dominant　frequency　under　different　conditions　were　analyzed.　A　decrease　trend　is　noted　in　peak　strength,　elastic　modulus　and　longitudinal　wave　velocity　of　heat-treated　marble　by　water　cooling　with　the　increase　of　treated　temperature.　When　the　temperature　is　lower　than　400　,　the　attenuation　coefficient　gradually　increases　and　the　dominant　frequency　gradually　declines　with　the　increase　of　temperature.　When　the　temperature　is　higher　than　400　,　the　attenuation　coefficient　and　dominant　frequency　do　not　completely　exhibit　monotonically　increasing　or　decreasing　trend,　though　there　is　a　turning　point.　The　peak　strength,　elastic　modulus　and　dominant　frequency　of　heat-treated　marble　samples　after　water　cooling　are　lower　than　those　after　natural　cooling,　but　the　longitudinal　wave　velocity　and　attenuation　coefficient　are　opposite.　These　results　can　provide　references　for　the　engineering　health　monitoring　and　stability　evaluation　of　cooling　methods　on　heat-treated　rocks.　©　2016,　Academia　Sinica.　All　right　reserved.