1. A recognition dictionary creation device comprising: a language identification unit for identifying a language of a reading of an inputted text which is a target to be registered; a reading addition unit for adding a reading with phonemes in the language identified by said language identification unit to said target text to be registered; a reading conversion unit for converting said reading of said target text to be registered from the phonemes in the language identified by said language identification unit to phonemes in a language to be recognized which is handled in voice recognition; and a recognition dictionary creation unit for creating a recognition dictionary in which said reading of said target text to be registered which is converted by said reading conversion unit is registered.