The　axial　direction　compression　and　acoustic　wave　tests　were　carried　out　for　different　high　temperature　limestones　with　water　cooling　treatment.　Both　the　changes　of　superficial　morphology　and　mechanical　properties　and　the　relationship　between　the　mechanical　and　acoustic　characteristics　were　studied　and　analyzed.　The　results　show　that　with　the　increase　of　temperature,　the　appearance　color　of　the　water　cooling　limestone　fades　gradually.　When　the　temperature　reaches　700,　the　appearance　color　of　the　water　cooling　limestone　changes　to　hoar.　The　peak　stress　has　a　decreasing　trend　on　the　whole.　When　the　temperature　changes　from　room　temperature　to　500,　the　peak　strain　gradually　increases,　and　the　elastic　and　deformation　modulus　gradually　reduces.　When　the　temperature　is　more　than　500,　the　peak　strain　decreases　first　and　then　increases,　and　the　elastic　and　deformation　modulus　increase　firstly　and　then　decrease.　With　the　increase　of　temperature,　the　relationships　among　the　peak　stress　and　the　wave　velocity,　the　elastic　modulus　and　the　wave　velocity　demonstrate　good　correlations.　©　2016,　Central　South　University　Press.　All　right　reserved.