The　demand　for　multinarrowband　absorber　has　attracted　increasing　interest　among　researchers　in　recent　years.　However,　integrating　multifrequency　absorption,　tunability,　and　high　optical　transparency　into　an　absorber　remains　a　crucial　challenge.　In　this　study,　a　multiband,　tunable,　and　transparent　microwave　meta-absorber　is　theoretically　proposed　and　experimentally　demonstrated.　This　meta-absorber　is　composed　of　resonant　patterns　made　from　graphene　and　indium　tin　oxide　(ITO),　placed　on　a　substrate　of　lithium　niobate　(LN).　By　introducing　P-type　doping　to　reduce　the　resistance　of　monolayer　graphene　to　around　300　Ω,　the　impedance　matching　of　the　absorber　is　promoted,　consequently　manifesting　ten　absorption　points　within　40 GHz.　The　electric　field　distribution　analysis　and　an　equivalent　circuit　model　are　employed　to　elucidate　the　physical　mechanisms　of　the　multiband　absorber.　Additionally,　the　lithium　niobate　dielectric　layer　possesses　a　substantial　dielectric　constant　and　exhibits　phase　transition　characteristics　with　temperature　changes.　When　the　temperature　increases　to　250 °C,　a　comprehensive　tuning　range　of　more　than　5.49 GHz　within　40 GHz　range　is　realized.　The　maximum　tuning　range　for　a　single　frequency　point　is　1.33 GHz.　With　the　broadening　of　the　band,　the　meta-absorber　can　provide　multiple　tunable　ranges,　making　it　more　favorable　for　practical　applications　in　optical　modulator　and　sensor.　©　2024　The　Author(s).　Advanced　Electronic　Materials　published　by　Wiley-VCH　GmbH.