Abstract: The present invention provides a new identification method • identification device of a coin-like product, and a coin-like product having a structure for identification that makes the identification method applicable. The coin-like product 1 of the present invention has a laminate structure formed by two or more kinds of metal layers 11 and 12. The first layer 11, which is a surface layer on one plate side of the laminate structure, and the second layer 12, which is a surface layer on the other plate side of the laminate structure, have different electric conductivities, which makes it possible to identify the structure by a reflex electronic sensor.