Due　to　the　planning　of　the　subway　route,　it　is　difficult　to　avoid　crossing　soft　soil　site　conditions　at　subway　stations.　The　seismic　response　of　subway　station　structures　is　closely　related　to　the　surrounding　soil　site.　In　this　paper,　centrifuge　shaking　table　tests　were　designed　and　carried　out　for　subway　station　structures　at　three　typical　soft　soil　sites　(all-clay　site,　liquefiable　interlayer　site,　and　fully　liquefiable　site).　The　test　results　are　as　follows.　The　structure　is　most　severely　damaged　in　all-clay　site,　while　the　damage　is　low　in　liquefiable　interlayer　site　and　fully　liquefiable　site.　For　liquefiable　sites,　site　liquefaction　results　in　a　lower　soil-structure　stiffness　ratio.　Thus　liquefiable　interlayer　site　and　fully　liquefiable　site　provide　a　natural　seismic　isolation　system　for　structures　compared　to　all-clay　site.　The　limits　of　the　inter-story　drift　ratio　of　the　structure　were　used　to　evaluate　the　post-earthquake　performance　stages　of　the　model　structure　in　the　three　sites.　In　all-clay　site,　the　structure　is　in　the　＂immediately　operational＂　stage　after　the　loading　condition　of　0.1g　and　0.32g,　and　in　the　＂reparable　operational＂　stage　after　the　loading　condition　of　0.52g　and　0.72g.　In　the　liquefiable　interlayer　site　and　full　liquefiable　site,　the　underground　structure　is　in　the　＂normal　operational＂　stage　after　the　loading　condition　of　0.1g　and　in　the　＂immediately　operational＂　stage　after　the　loading　condition　of　0.32g-0.72g.