To provide an inexpensive and highly reliable coin processing apparatus for holding accepted current coins, and for arranging a storage port and a return port on the lower surface of the device, and for preventing coins from being jammed when storing and returning the coins even by holding a plurality of coins whose diameters are different.

The coin processing apparatus for discriminating the authenticity of cast coins to select the coins to be accepted from the coins to be returned, and for holding the accepted coins in a holding part 124, and for selectively feeding the held coins to a storage port or a return port 108 is configured by forming the storage port and the return port 108 on the lower surface of a device, and arranging the holding part 124 at the upper part of the storage port and the return port 108, and configuring a holding chamber 126 by a bottom board 212, a movable surface holder 214 and a movable periphery holder, and tilting the bottom board 212 to the storage port side and the return port side, and forming the movable surface holder 214 so that it is selectively movable to a surface holding position making a prescribed angle with the bottom board 212 and a non-surface holding position separated from the bottom board 212, and arranging the movable periphery holder at the storage port side with respect to the bottom board 212 so that the coins in the holder chamber 126 can selectively move to the periphery holding position and a non-periphery holding position to allow the movement of the coins to the storage port.