To provide a coin-like object identifying method and a device for forming the diversified types of coin-like objects and can identify such types of coin-like objects with a simple constitution and to provide the coin-like objects.

In the coin-like object identifying method and device and the coin-like object, the coin-like object is identified according to the area ratio of a recessed face and a projection face which are formed on the surface of the coin-like object made of conductive metal, or the relative distance between a recessed face and a projection face or the combination of them, and electrostatic capacity which is set between and electrode that is oppositely installed to the object through a dielectric. The coin-like object formed by sandwiching and joining the dielectric between opposite planar objects is identified according to the thickness and the material of the dielectric or electrostatic capacity which is defined by the combination of them.