To accurately inspect operation states of RF-ID media sequentially arranged on a continuous sheet on a conveying passage for conveying the continuous sheet.

The continuous sheet 1 on which non-contact IC labels 100 are arranged sequentially is conveyed while bringing its one face into contact with a flat plane 20 and bringing the other face into contact with a belt 32. By means of an inspection part 10 arranged on the flat plane 20 installation side on the conveying passage for the continuous sheet 1 so that it faces the conveyed continuous sheet 1, the operation state of the non-contact IC label 100 is inspected.