Combined　3-dimensional　isolation　bearing　(3DIB)　for　3-dimensional　base-isolated　building　is　introduced　in　this　paper.　3DIB　is　combined　with　lead　rubber　bearing　(LRB)　and　disk　spring　bearing　(DSB).　Performance　test　results　of　the　3DIB　show　that　the　horizontal　properties　and　vertical　properties　of　the　3DIB　are　determined　by　LRB　and　DSB,　respectively.　A　series　of　shaking　table　tests　of　the　1/2　scale　fixed-base　model　and　the　3DIB　base　isolated　system　were　carried　out　and　compared　to　confirm　the　validity　of　the　3DIB.　Results　show　that　the　3DIB　can　isolate　3-dimensional　earthquake　energy　remarkably.　With　the　acceleration　amplitude　increased,　larger　displacement　of　the　3DIB　base　isolated　system　occurred　on　the　isolation　layer,　and　the　inter-story　deformation　of　the　superstructure　changed　slightly.　The　horizontal　acceleration　responses　of　3DIB　model　decreased　more　than　60%　and　the　vertical　acceleration　responses　decreased　more　than　50%　under　seldom　earthquake　input,　which　confirmed　that　3DIB　could　reduce　the　3-dimensional　seismic　responses　obviously.