Friction　Pendulum　System　(FPS)　is　applied　to　single-layer　spherical　lattice　shells　to　investigate　its　seismic　isolation　performance.　The　governing　equations　for　the　structure　with　FPS　are　developed.　The　effectiveness　of　the　FPS　is　examined　by　analyzing　the　characteristics　of　seismic　responses,　which　are　induced　by　different　intensity　of　ground　motions.　It　is　shown　that　nodal　acceleration　and　element　axial　forces　of　the　structure　are　effectively　mitigated.　Meanwhile,　the　isolation　effectiveness　is　going　to　be　better　under　intenser　ground　motions.