For　the　problem　of　dynamic　characteristics　of　the　hydrostatic　spindle　in　the　process　of　movement,　the　impact　that　oil　film　slip　on　bearing　capacity,　stiffness　and　dynamic　stiffness　is　researched.　Introducing　the　velocity　slip　boundary　conditions,　the　hydrostatic　spindle　load-bearing　characteristic　equation　combined　with　liquid　flow　equation　form　a　coupling　equation　system.　The　bearing　capacity,　stiffness　and　dynamic　stiffness　of　spindle　system　are　numerically　analyzed.　The　spindle　static　and　dynamic　properties　and　oil　film　dynamic　stiffness　characteristics　are　researched　in　the　initial　stage　of　oil　film.　It　is　concluded　that　the　occurrence　of　oil　film　slip　results　in　the　increase　of　bearing　capacity　and　stiffness　from　the　simulation　results,　the　corresponding　oil　film　thickness　with　the　maximum　stiffness　is　reduced.　The　existence　of　slip　phenomenon　is　obtained　in　the　oil　film　flow　process　of　spindle　system.　This　study　explores　a　new　way　for　the　analysis　of　hydrostatic　spindle　oil　film　static　and　dynamic　performance　and　the　research　of　dynamic　stiffness.　©　2016　Journal　of　Mechanical　Engineering.