1. A vehicle information display device, comprising: an object detecting portion configured to detect an object in a surrounding area of a host vehicle; and a display portion configured to display an object mark corresponded to the object, the display portion having a display area for displaying the object mark corresponded to the object to emphatically display the object detected by the object detecting portion, the display portion displaying the object mark so that when one or more second objects are detected in the vicinity of a first object detected by the object detecting portion, the second objects being different from the first object, and the number of the second objects is large, an emphasizing degree of a vertical component of the object mark is suppressed in comparison with the emphasizing degree of the vertical component of the object mark when the number of the second objects is small or no second object is detected.