It　has　been　shown　that　the　lack　of　horizontal　deformation　capacity　of　the　middle　columns　under　high　axial　pressure　is　the　key　factor　leading　to　seismic　failure　of　shallow　frame　underground　structures.　When　the　bearing　capacity　of　the　split　columns　is　equal　to　that　of　the　whole　columns,　the　split　columns　have　better　deformation　and　energy　dissipation　capacity.　Based　on　ABAQUS　finite　element　numerical　analysis,　by　establishing　a　three-dimensional　numerical　model　for　soils　and　underground　structures　as　a　whole,　the　Pushover　analysis　method　and　the　dynamic　time　history　analysis　method　are　used　to　compare　and　study　the　dynamic　response　differences　between　the　new　underground　station　structure　and　the　prototype　station　structure.　The　research　results　show　that　the　seismic　response　of　the　story　displacement　of　the　new　underground　station　structure　with　split　columns　increases,　but　the　influence　degree　is　not　significant　compared　with　the　improvement　of　the　deformation　capacity　of　the　columns.　The　replacement　of　the　cast-in-place　integral　columns　with　the　split　columns　will　make　the　internal　force　of　the　structure　section　redistributed,　the　shear　force　borne　by　the　middle　columns　greatly　decreases,　and　the　change　of　the　shear　force　of　the　side　walls　is　not　obvious.　On　the　whole,　the　new　type　of　underground　station　structure　with　split　columns　can　significantly　improve　the　incoordination　of　deformation　between　the　middle　columns　and　the　side　walls　under　high　axial　compression　ratio,　and　can　effectively　improve　their　seismic　performance.　©　2021,　Editorial　Office　of　Chinese　Journal　of　Geotechnical　Engineering.　All　right　reserved.