Under　strong　earthquakes,　subway　station　structures　situated　in　potentially　liquefiable　soils　may　experience　complex　seismic　response　scheme　when　the　structure　base　slab　is　embedded　in　non-liquefiable　soils　while　the　sidewalls　and　top　slab　are　buried　in　liquefiable　soils　(hereinafter　referred　to　as　a　＂liquefiable　sites＂).　This　paper　investigates　the　dynamic　seismic　responses　of　multi-story　underground　structures　in　liquefiable　sites　employing　an　advanced　three-dimensional　nonlinear　finite　element　model.　The　results　indicate　that　the　seismic　response　of　underground　structures　is　primarily　determined　by　the　soil　displacement　and　the　soil-structure　stiffness　ratio.　In　addition,　the　seismic　response　of　the　soil-underground　structure　system　is　strongly　influenced　by　the　distinct　characteristics　of　the　input　ground　motion.　Seismic　input　motions　rich　in　low-frequency　components　are　more　likely　to　cause　saturated　sand　layers　to　liquefy　and　are　likely　to　trigger　more　pronounced　flow　deformations,　leading　to　severe　damage　to　underground　structures.　Generally,　liquefied　soils　are　prone　to　significant　horizontal　displacements　(i.e.,　lateral　spreading);　however,　due　to　the　reduced　soil-structure　stiffness　ratio,　the　soil　ability　to　induce　shear　deformation　in　the　structure　is　diminished,　and　hence　the　structure　does　not　undergo　large　horizontal　deformations　same　as　that　of　the　soil.　Additionally,　structures　may　exhibit　a　slight　tendency　to　uplift　after　the　earthquake.　These　observations　can　inform　the　seismic　design　of　underground　structures　in　liquefiable　sites.