Based　on　a　subway　station　structure　of　three　stories　and　three　spans　at　a　liquefiable　ground,　a　series　of　shaking　table　tests　are　conducted.　This　paper　mainly　analyzes　the　ground　liquefaction　effect　characteristics.　The　results　indicate　that　the　structure　has　an　obvious　effect　on　the　distribution　of　the　pore　pressure　field.　At　the　same　depth　of　soil,　the　peak　value　of　the　pore　pressure　of　each　measured　point　near　the　structure　is　less　than　that　far　from　the　structure.　The　dissipation　rate　of　the　pore　pressure　gradually　slowed　down　from　the　bottom　to　the　top　of　the　foundation.　The　structure　has　an　upward　movement　relative　to　the　foundation　in　the　process　of　earthquake,　and　the　floating　phenomenon　is　more　obvious　when　it　is　subjected　to　strong　ground　motion.　The　dynamic　soil　pressure　on　the　side　walls　decreases　with　increasing　depth.　The　input　ground　motions　have　a　significant　influence　on　the　dynamic　soil　pressure.