Graphene has attracted great experimental and theoretical interest since its successful fabrication.[1,2]The unique electronic structure of graphene,characterized by massless relativistic particle-like dispersion near two inequivalent coer points of the Brillouin zone,gives rise to exotic physical properties.[3]One of the interesting questions would be how electrons could be paired in such a system.There have been many theoretical studies that explored the possibility of the superconductivity in single/multilayer graphenes.In particular,the authors of Ref.[4] predicted a spin singlet p + ip pairing state in the presence of effective attractive e-e interaction between the nearest neighboring sites.More exotic possibilities such as chiral s-wave,d-wave and f-wave pairings are also predicted.[5-9] First principles calculation has suggested that superconductivity could be induced by doping alkaline adatoms.[10] Recently,superconductivity has been realized in potassium-doped few-layer graphene.