The　paper　studies　the　mathematics　model　for　calculation　and　analysis　of　the　high-speed　bearing　in　order　to　improve　the　performance　of　high-speed　bearing.　According　to　the　different　work　conditions,　analysis　of　the　bearings　ratio　of　revolution　and　rolling　were　inverted　from　the　slipping　of　the　bearing.　Based　on　the　result　of　the　equation,　the　relationship　between　the　work　conditions　and　ratio　of　revolution　and　rolling　is　deduced,　mathematic　model　for　the　selection　and　optimization　is　designed　for　the　high-speed　angular　contact　ball　bearing.