An RFID tag is provided to reduce the dispersion of an electro magnetic wave. A metal thin film sheet(120) is arranged on a shielding member(130). A label tag(110) comprises a chip(112) and an antenna(114) connected with chip on the metal thin film sheet. The shielding member has a separate space on the inside. The shielding member comprises a superstructure and a substructure. The superstructure and the substructure comprise the separate space. The superstructure or the substructure includes a sub space member(138). The sub space member maintains the separate space. The shielding member comprises silver paste provided to the inner wall of the superstructure.
