The invention discloses a method for preparing polyaniline composite hard conductive graphene material. The graphene contained in the composite material has excellent hardness and intensity. The silicon dioxide obtained by applying ethyl orthosilicate as precursor can further improve the mechanical properties of finished products. The polymer obtained by processing the aggregation of aniline monomers in acid-doped solutions has superior conductivity, and can improve the dispersity of graphene in polymers and the stability of finished products. The conductivity and the breaking elongation of the composite material are distinctly increased.