In　this　study,　the　vibration　and　flutter　characteristics　of　the　graphene　platelets　reinforced　functionally　graded　porous　cylindrical　panels　subjected　to　the　supersonic　flow　are　investigated　for　the　first　time.　The　considered　panels　are　constructed　of　the　nanocomposites　that　made　of　matrix　of　open-cell　metal　foams　with　graded　pore　distributions　and　are　reinforced　uniformly　by　the　graphene　platelets.　The　typical　mechanical　properties　of　porous　matrix　are　determined　using　open-cell　metal　foam　model,　which　provides　a　typical　mechanical　feature　to　determine　the　relationship　between　coefficients　of　density　and　porosity.　The　effective　elasticity　modulus　of　the　nanocomposite　is　determined　based　on　a　modified　Halpin-Tsai　micromechanics　model,　and　the　rule　of　mixture　is　used　to　calculate　the　Poisson＇s　ratio　and　mass　density.　A　high　order　shear　deformable　computational　framework　is　developed　with　inclusion　of　the　trapezoidal　shape　factor　to　eliminate　the　errors　introduced　by　the　curvature　of　the　panels.　The　standard　Lagrange　processing　in　conjunction　with　the　Navier-solution　technique,　with　the　help　of　the　first-order　piston　theory,　is　applied　to　derive　the　equations　of　motion　related　to　the　vibration　and　flutter　characteristics　of　the　cylindrical　panel　with　simple-supported　boundary　condition.　Comparisons　of　the　natural　frequencies　with　the　previous　works　are　performed　to　validate　the　proposed　model.　Parameter　studies　are　carried　out,　and　the　results　in　the　form　of　graphs　or　tables　reveal　the　effects　of　pore,　graphene　platelets　on　the　supersonic　flutter　characteristics　of　the　nanocomposite　cylindrical　panels　subjected　to　the　aerodynamic　flow.　©　2021　IAA