Aiming　at　the　isolation　system　under　interference　actions,　during　the　vibration　control　process,　according　to　the　examined　vibration　signals,　the　software　package　of　Simulink　was　used　to　establish　a　mathematics　model　to　the　isolation　system　and　to　carry　out　simulation　to　the　functions　of　the　system,　and　to　analyze　the　simulation　result　in　both　time　area　and　frequency　area.　Then,　by　applying　a　certain　control　strategy　and　real-time　calculation,　driving　the　displacement　actuator　to　apply　certain　influence　to　the　control　target,　to　attain　the　objective　of　restraining　or　eliminating　vibration.　Through　analysis　and　comparison,　the　accuracy　and　effectiveness　of　the　optimum　control　was　verified.　With　the　help　of　the　MATLAB　of　the　control　cabinet　and　its　instructions,　the　design　and　imitation　process　became　very　simple.