Directing　at　the　problem　of　torsional　vibration　occurred　in　the　start-up　procedures　of　long　shaft　drive　transmission　existed　in　printing　equipment,　we　raised　a　variable　structure　control　method　based　on　Variable　parameters　fuzzy.　The　method　not　only　displays　feature　of　traditional　non-linear　variable　structure　control　like　nondeference　derivation,　planning　the　dynamic　process　and　good　capacity　of　resisting　disturbance,　but　also　able　to　effectively　suppress　the　vibration　generated　when　switching　sliding　mode　surface.　By　means　of　simulation　test　and　platform　test,　we　prove　that,　compared　with　traditional　PID　controller,　the　PID　controller　with　tracking　differentiator　in　the　staring　process.　The　maximum　overshoot　of　the　system　output　is　reduced　to　4.8%　from　72.2%　and　its　adjustment　time　has　been　shortened　210ms,　which　help　realize　the　improvement　of　start-up　speed　and　vibration　suppression.　©　2014　ACADEMY　PUBLISHER.