This　paper　investigates　the　free　vibrations　of　the　rotating　pretwisted　functionally　graded　(FG)　composite　cylindrical　panels　reinforced　with　the　graphene　platelets　(GPLs)　by　considering　the　cantilever　boundary　conditions.　The　weight　fraction　of　the　graphene　platelets　in　each　ply　may　be　different,　which　leads　to　the　layer-wise　functionally　graded　composite　cylindrical　panels　reinforced　with　the　GPLs.　The　effective　Young＇s　modulus　is　calculated　by　the　modified　Halpin-Tsai　model.　The　effective　Poisson＇s　ratio　and　mass　density　are　derived　by　the　rule　of　the　mixture.　The　strain-displacement　relationship　is　acquired　by　the　Green　strain　tensor.　Based　on　the　first-order　shear　deformation　theory,　Chebyshev-Ritz　method　is　used　to　obtain　the　natural　frequencies　of　the　rotating　pretwisted　functionally　graded　composite　cylindrical　panel　reinforced　with　the　GPLs.　The　natural　frequencies　are　discussed　by　considering　different　material　and　geometry　parameters　of　the　rotating　pretwisted　functionally　graded　composite　cylindrical　panel　reinforced　with　the　GPLs,　such　as　the　GPL　distribution　pattern,　the　GPL　weight　fraction,　the　geometries　of　the　GPLs,　the　pretwisted　angle,　the　presetting　angle　and　the　rotating　speed.　Several　validations　are　carried　out,　the　numerical　results　are　in　good　agreement　with　the　results　of　the　literature　and　ANSYS.　©　2019　Elsevier　Masson　SAS