Reducing　the　manufacturing　time　is　the　trend　of　high-precision　manufacturing,　and　the　precision　of　a　work-piece　is　very　important　for　manufacturing　industry.　The　high-speed　motorized　spindle　is　the　most　critical　part　and　becoming　more　widely　used　in　the　machine　tool　at　present,　and　its　precision　may　affect　the　overall　performance　of　high-speed　cutting.　Most　of　the　studies　on　highspeed　cutting　are　focused　on　the　cutting　force,　the　vibration　of　the　spindle　and　effects　of　the　spindle＇s　thermal　deformations;　hence,　how　to　roundly　measure　and　objectively　evaluate　high-speed　spindle　is　an　imminence　question　of　it　because　the　comprehensive　dynamic　properties　and　evaluation　system　of　spindles　directly　affect　the　cutting　ability　of　the　whole　machine　tool　before　they　are　manufactured.　This　paper　presents　a　comprehensive　measurement　and　evaluation　system　of　high-speed　motorized　spindle,　which　reflects　the　overall　performance　of　motorized　spindle　and　bases　on　international　standard.　©　Higher　Education　Press　and　Springer-Verlag　Berlin　Heidelberg　2011.