Bone　drilling　is　a　routine　operation　in　surgeries,　such　as　neurosurgery　and　orthopedics.　However,　the　excessive　drilling　temperature　may　cause　severe　thermal　damage　to　the　bone　tissue.　Therefore,　the　drilling　temperature　determination　of　bone　tissue　can　reduce　the　harm　caused　by　thermal　damage.　A　time-varying　temperature　field　simulation　model　of　bone　drilling　was　set　up　by　ABAQUS　software　in　this　paper,　based　on　the　Johnson-Cook　model.　Then　it　was　validated　with　experiments　by　drilling　cortical　bone　of　fresh　bovine　shaft　of　the　femur.　The　relative　error　between　the　experimental　values　and　the　theoretical　values　within　7.67%　showed　a　good　consistency.　Furthermore,　the　aging　factor　is　also　considered　to　evaluate　the　temperature　field　of　bone　drilling.　The　results　showed　that　the　drilling　temperature　near　the　bone-drill　area　increased　significantly.　The　drilling　temperature　of　cortical　bone　decreases　sharply　with　the　radial　distance　and　exhibits　a　hysteresis　lag　in　the　axial　distribution.　The　aging　factor　mainly　affects　the　peak　of　drilling　temperature.　The　peak　of　drilling　temperature　tends　to　increase　with　age.　The　peak　drilling　temperature　in　the　elderly　(70y)　was　up　to　6.8%　higher　than　that　in　the　young　(20y),　indicating　that　the　elderly　is　more　prone　to　excessive　drilling　temperature.　Therefore,　special　attention　should　be　paid　to　the　temperature　control　of　elderly　bone　tissue.　©　2022　The　Author(s)