The　camshaft　grinding　is　precision　machine　tool.　This　paper　discusses　on　the　necessity　of　finite　element　analysis.　This　paper　briefly　introduces　the　camshaft　grinding　machine　structure,　and　compared　the　emulation　of　grinding　and　tangent　point　tracing　grinding　camshaft　two　grinding　methods,　The　benefits　of　motorized　spindle,　support　bearing,　feed　system　and　the　application　of　CBN　grinding　wheel　for　high　speed　grinding　are　introduced　in　detail.　Using　Pro/E　software　to　establish　a　certain　type　of　3D　model　of　camshaft　grinding　machine　for　grinding　wheel　rack　frame,　and　using　the　finite　element　analysis　software　ANSYS　to　the　grinding　wheel　rack　frame　for　the　statics　analysis　and　modal　analysis.　Finally,　static　analysis　and　modal　analysis　results　of　casing　strength　checking　of　grinding　wheel　frame　and　structure　optimization　provides　an　important　basis.