To provide a non-contact data transmitting/receiving unit which is excellent in flexibility, thermal resistivity and weatherability, and prevents deterioration of communication characteristics in an antenna.

A non-contact type data transmitting/receiving unit 10 is provided with an inlet 11 configured of a base substrate 13, an antenna 15 and an IC chip 14 formed on one face 13a so as to be connected to each other; and a protection member 12 formed on the whole face of the other face 13a of the base substrate 13. The protection member 12 is made of an elastomer, and a plurality of micro-bubbles, micro-nano bubbles or nano-bubbles are uniformly dispersed in the protection member 12.