1. A navigation device comprising: a target candidate extracting unit for extracting a plurality of target candidates located along a guidance route from a map database on a basis of a vehicle position, the guidance route, and intersection information about a target intersection for guidance, wherein each of the extracted target candidates is a guidance target which solely exists, for each type of targets, alongside the guidance route in a section extending from the vehicle position to a point located at a predetermined distance from the target intersection for guidance; a target determining unit for determining whether or not each of said target candidates extracted by said target candidate extracting unit should be used as a target on a basis of a positional relationship between said each of the target candidates and the target intersection for guidance; a guidance sentence generating unit for generating a guidance sentence by using said target determined by said target determining unit; and a sound output unit for outputting voice guidance on a basis of said guidance sentence generated by said guidance sentence generating unit.