There　are　three　kinds　of　isolators　commonly　used　in　storage　tank,　friction　pendulum　bearing　(FPB),　laminated　rubber　bearing　(LRB),　and　variable　curvature　friction　pendulum　bearing　(VCFPB),　respectively.　Real-time　hybrid　simulation　is　conducted　in　this　paper　to　compare　the　seismic　performance　of　the　storage　tank　isolated　by　the　above　three　types　of　bearings.　The　storage　tank　is　used　as　the　physical　substructure　for　experimental　testing,　and　the　isolators　are　adopted　as　the　numerical　substructure　for　numerical　simulation.　The　isolation　performance　is　estimated　by　the　following　perspectives:　deformation　of　the　isolator,　shear　force,　overturning　moment,　and　input　energy.　Test　results　show　that　the　deformation　of　LRB　is　the　largest,　which　can　be　twice　that　of　FPB,　and　that　larger　deformation　will　enlarge　the　seismic　energy　input　into　the　storage　tank.　Moreover,　the　low-frequency　components　of　shear　force　and　overturning　moment　are　amplified　by　LRB.　In　contrast,　the　FPB　and　VCFPB　have　a　good　performance　on　all　frequency　bands.　Particularly,　the　softening　mechanism　enables　VCFPB　to　have　better　seismic　performance　and　have　a　reduction　rate　of　about　twice　that　of　LRB.