A　Vertical　seismic　isolation　system　using　disk　spring　is　designed.　The　experiment　is　conducted　in　dynamic　character　and　it　is　analyzed　using　the　time-history　analysis　method.　The　maximum　acceleration　and　the　displacement　response　between　story　and　story　are　provided.　The　differences　between　the　isolated　building　and　the　non-isolated　building　are　discussed.　It　is　proven　that　the　disk　spring　device　can　work　efficiently　in　vertical　seismic　isolation.