This　paper　established　a　general　mathematical　modeling　method　based　on　stress　analysis　of　the　angular　contact　ball　bearing　under　high　rotation　speed.　The　influence　of　the　centrifugal　force　and　gyroscopic　moment　generated　in　the　rotation　process　is　taken　into　account　in　this　mathematical　model.　This　paper　conducted　in-depth　research　for　these　aspects:　the　stiffness　characteristics　of　angular　contact　ball　bearings　under　different　load　conditions　and　different　rotational　speed,　internal　contact　deformation　and　the　change　of　bearing　parameters.