A paper sheet management apparatus comprising: an identification information recognizing unit configured to perform a character recognition based on identification information of a paper sheet, composed of predetermined digits for identifying a paper sheet, to obtain a character recognition result including a recognizable character and/or an unrecognizable character, and to obtain an identification information recognition result including a recognizable determined character and/or an unrecognizable undetermined character based on the obtained character recognition result; and a registration condition judgment unit configured to judge whether or not the identification information recognition result meets a predetermined registration condition, based on the determined character or the undetermined character in the identification information recognition result which has been obtained by the identification information recognizing unit; characterised by a registration control unit configured to register the identification information recognition result in a database when the registration condition judgment unit judges that the identification information recognition result meets the predetermined registration condition even when the identification information recognition result includes the undetermined character, and to forbid registration of the identification information recognition result in the database when the registration condition judgment unit judges that the identification information recognition result does not meet the predetermined registration condition; and a specific digit designating unit configured to designate a specific digit among the predetermined digits of the identification information recognition result, based on a user setting operation, wherein the registration condition judgment unit is configured to judge that: the identification information recognition result meets the predetermined registration condition when the character of the specific digit in the identification information recognition result is a determined character; and the identification information recognition result does not meet the predetermined registration condition when the character of the specific digit in the identification information recognition result is an undetermined character. an identification information recognizing unit configured to perform a character recognition based on identification information of a paper sheet, composed of predetermined digits for identifying a paper sheet, to obtain a character recognition result including a recognizable character and/or an unrecognizable character, and to obtain an identification information recognition result including a recognizable determined character and/or an unrecognizable undetermined character based on the obtained character recognition result; and a registration condition judgment unit configured to judge whether or not the identification information recognition result meets a predetermined registration condition, based on the determined character or the undetermined character in the identification information recognition result which has been obtained by the identification information recognizing unit; characterised by a registration control unit configured to register the identification information recognition result in a database when the registration condition judgment unit judges that the identification information recognition result meets the predetermined registration condition even when the identification information recognition result includes the undetermined character, and to forbid registration of the identification information recognition result in the database when the registration condition judgment unit judges that the identification information recognition result does not meet the predetermined registration condition; and a specific digit designating unit configured to designate a specific digit among the predetermined digits of the identification information recognition result, based on a user setting operation, wherein the registration condition judgment unit is configured to judge that: the identification information recognition result meets the predetermined registration condition when the character of the specific digit in the identification information recognition result is a determined character; and the identification information recognition result does not meet the predetermined registration condition when the character of the specific digit in the identification information recognition result is an undetermined character. the identification information recognition result meets the predetermined registration condition when the character of the specific digit in the identification information recognition result is a determined character; and the identification information recognition result does not meet the predetermined registration condition when the character of the specific digit in the identification information recognition result is an undetermined character.