The present inventive concept is a technique related to a system and method for displaying 3D tour comparisons. The method for displaying a 3D tour comparison including setting each reference point for first and second tours that are different from each other, and setting coordinate values for a plurality of image photographing points included in the first and second tours, respectively, in the first tour, setting a first point that is one of the plurality of image photographing points included in the first tour, in the second tour, selecting a second point closest to the coordinate value of the first point out of the plurality of image photographing points included in the second tour, and displaying an image related to the first point on one side of a split-screen, and displaying an image related to the second point on the other side of the split-screen.