A noncontact IC tag label includes: a band-shaped label base material inclusive of a release surface formed at least at one end of the base material and releasably treated in advance, and a non-release surface; an electroconductive layer formed on the non-release surface of the band-shaped label base material and including a required antenna pattern; and an IC chip mounted on one face of the electroconductive layer. The electroconductive layer and the IC chip are shrouded by a surface protection sheet via a pressure-sensitive adhesive layer. A thermoadhesive resin layer bonded onto the non-release surface of the band-shaped label base material is provided on an opposite face of the electroconductive layer including the antenna pattern, with respect to the surface protection sheet. Also, the pressure-sensitive adhesive layer is bonded onto the non-release surface and release surface of the band-shaped label base material.