The invention discloses a honeycomb board composite structure. The honeycomb board composite structure comprises a honeycomb board, an angle section and a connecting piece, wherein the connecting piece is used for connecting the honeycomb board and the angle section, and the honeycomb board comprises metal skins and a honeycomb core, and the metal skins are engaged with the connecting piece. The metal skins are arranged at the honeycomb board, so that the problem about connection between the honeycomb board and the connecting piece is solved by means of the good ductility of the metal skins.