A coin handling device comprising: a detection unit configured to detect a feature of a coin; a determination unit configured to determine a type of the coin based on the feature of the coin detected by the detection unit; a reception unit configured to receive from an operator handling settings that designate a way of handling the coin that is an indeterminate coin of which the type is not determined and for which multiple options of the type are extracted by the determination unit; and a handling unit configured to handle the indeterminate coin based on the handling settings received by the reception unit; characterised in that the handling settings include a first setting item that designates the indeterminate coin as a coin to be subjected to rejection handling, a second setting item that designates the indeterminate coin as a coin of a type having a highest degree of similarity among the multiple options of the type, and a third setting item that designates a degree of priority of the type of the indeterminate coin, the reception unit is configured to receive one of the first, second, and third setting items from the operator, and based on the setting item received by the reception unit, the handling unit is configured to: perform the rejection handling on the indeterminate coin based on the first setting item; handle the indeterminate coin as a coin of the type having the highest degree of similarity among the multiple options of the type based on the second setting item; or determine the indeterminate coin as a coin of a type having a highest degree of priority among the multiple options of the type based on the third setting item and handle the indeterminate coin as a coin of this type. a detection unit configured to detect a feature of a coin; a determination unit configured to determine a type of the coin based on the feature of the coin detected by the detection unit; a reception unit configured to receive from an operator handling settings that designate a way of handling the coin that is an indeterminate coin of which the type is not determined and for which multiple options of the type are extracted by the determination unit; and a handling unit configured to handle the indeterminate coin based on the handling settings received by the reception unit; characterised in that the handling settings include a first setting item that designates the indeterminate coin as a coin to be subjected to rejection handling, a second setting item that designates the indeterminate coin as a coin of a type having a highest degree of similarity among the multiple options of the type, and a third setting item that designates a degree of priority of the type of the indeterminate coin, the reception unit is configured to receive one of the first, second, and third setting items from the operator, and based on the setting item received by the reception unit, the handling unit is configured to: perform the rejection handling on the indeterminate coin based on the first setting item; handle the indeterminate coin as a coin of the type having the highest degree of similarity among the multiple options of the type based on the second setting item; or determine the indeterminate coin as a coin of a type having a highest degree of priority among the multiple options of the type based on the third setting item and handle the indeterminate coin as a coin of this type.