In　this　study,　a　modified　wear　model　considering　contact　temperature　for　spur　gears　in　mixed　elastohydrodynamic　lubrication　(EHL)　is　proposed.　The　contact　temperature　consists　of　bulk　temperature　and　flash　temperature.　The　bulk　temperature　is　determined　by　the　thermal　network　model,　whereas　the　flash　temperature　is　estimated　through　the　published　method.　The　bulk　temperature,　which　was　rarely　included　in　the　previous　works,　substantially　has　a　considerable　influence　on　the　tooth　wear　in　mixed　EHL.　It　is　also　found　that　the　lower　contact　temperature　contributes　to　the　reduction　of　gear　wear　depth.　Furthermore,　the　effects　of　gear　basic　geometrical　parameter　and　operating　parameter　on　wear　depth　are　investigated.　The　results　show　that　the　wear　depth　decreases　with　the　increased　tooth　width,　module,　pressure　angle　and　rotational　velocity　but　increases　with　the　surface　roughness　and　torque.　It　indicates　that　wear　resistance　of　tooth　surfaces　can　be　enhanced　by　optimising　the　design　parameters　of　gear　drives.