In　the　seismic　performance　analysis　of　the　isolated　tank,　the　shear　force　and　the　displacement　of　the　isolator　are　two　important　indexes.　Housner　model　is　a　commonly　used　simplified　liquid　model　in　the　seismic　design　of　tank.　It　has　good　accuracy　in　calculating　the　shear　force　and　has　been　widely　verified.　In　this　paper,　the　real-time　hybrid　simulation　method　is　used　to　study　the　tank　isolated　by　friction　pendulum　bearing　(FPB)　with　different　friction　coefficients　under　four　seismic　excitations.　And　the　Housner　model　is　used　to　replace　the　test　tank　to　simulate　each　case.　The　results　show　that　the　Housner　model　is　accurate　in　the　calculation　of　shear　force,　and　the　average　error　is　only　11%　compared　with　the　experimental　results.　However,　in　the　calculation　of　the　sliding　displacement　of　FPB,　there　is　a　big　gap　with　the　experimental　results.　The　average　error　is　22%,　and　the　maximum　error　is　more　than　30%.　©　2020,　Editorial　Board　of　World　Earthquake　Engineering.　All　right　reserved.