A　systemic　understanding　of　the　thermal　effects　on　the　dynamic　behavior　of　granite　is　significant　to　thermal　engineering　applications　such　as　waste　disposal　engineering　and　underground　coal　gasification.　In　the　present　study,　scanning　electron　microscope　(SEM)　tests　were　carried　out　to　evaluate　the　thermal　effects　on　the　geophysical　properties　of　granite.　The　results　show　that　the　density　decreases　slightly　as　the　temperature　increases　from　25　degrees　C　to　400　degrees　C　but　that　it　decreases　sharply　as　the　temperature　increases　further　to　our　maximum　tested　temperature　of　800　degrees　C.　The　defect　rate　increases　slightly　as　temperature　increases　from　25　degrees　C　to　400　degrees　C　and　then　increases　sharply　as　the　temperature　further　increases　to　800　degrees　C.　Next,　ultrasonic　wave　tests　were　performed　to　evaluate　the　thermal　effects　on　the　wave　velocity　and　P　wave　modulus.　The　results　show　that　both　the　wave　velocity　and　P-wave　modulus　decrease　sharply　and　linearly　below　the　temperature　of　400　degrees　C,　before　deceasing　nonlinearly　as　the　temperature　increases　to　800　degrees　C.　Finally,　split　Hopkinson　pressure　bar　(SHPB)　tests　were　adopted　to　investigate　the　thermal　and　loading　rate　coupling　effects.　The　results　show　that　the　dynamic　strength　decreases　linearly　as　temperature　increases　but　increases　as　the　impact　pressure　increases.　However,　the　dynamic　energy　absorption　capacity　increases　below　400　degrees　C　but　then　decreases　as　the　temperature　increases　to　800　degrees　C.　The　thermal　effects　on　energy　absorption　capacity　are　more　obvious　for　granite　under　a　smaller　impact　pressure.　(C)　2017　Elsevier　Ltd.　All　rights　reserved.