To provide a three-dimensional information display device capable of heightening a recognition rate on map information or route information without damaging reality of map expression.

This three-dimensional information display device includes a three-dimensional map information processing means 101 for processing three-dimensional map information, a three-dimensional route information processing means 102 for processing three-dimensional route information, and a three-dimensional information display means 103 for displaying the three-dimensional map information processed by the three-dimensional map information processing means 101 and the three-dimensional route information processed by the three-dimensional route information processing means 102. When a merging part and/or a branching part exists on a road to a destination included in the three-dimensional map information, the three-dimensional map information processing means processes the three-dimensional map information to display a merging and/or branching road, so that the height on a drawing of the merging and/or branching road agrees with the height on the drawing of a merged road and/or a branched road just before the merging part and/or the branching part.

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