Based　on　effective　medium　theory　and　dielectric　resonator　theory,　we　propose　the　design　of　reconfigurable　all-dielectric　metamaterial　frequency　selective　surfaces　(FSSs)　using　high-permittivity　ceramics.　The　FSS　is　composed　of　ceramic　resonators　with　different　band　stop　responses　under　front　and　side　incidences.　By　mechanically　tuning　the　orientation　of　the　ceramic　resonators,　reconfigurable　electromagnetic　(EM)　responses　between　two　adjacent　stopbands　can　be　achieved.　The　two　broad　stopbands　originate　from　the　first　two　resonant　modes　of　the　ceramic　resonators.　As　an　example,　a　reconfigurable　FSS　composed　of　cross-shaped　ceramic　resonators　is　demonstrated.　Both　numerical　and　experimental　results　show　that　the　FSS　can　switch　between　two　consecutive　stopbands　in　3.55-4.60　GHz　and　4.54-4.94　GHz.　The　design　method　can　be　readily　extended　to　the　design　of　FSSs　in　other　frequencies　for　high-power　applications.