Vehicle information display device and vehicle information display method

A vehicle information display device(1) including: a subject detecting sensor (11) that detects an object (T) in a surrounding area of a host vehicle; and a display portion (40) that has a display area (31) for displaying a display frame (X) corresponded to the object (T) in a mode of surrounding the object (T), and for emphatically displaying the object (T) detected by the subject detecting sensor, and the display frame (X) is displayed in a manner of that the emphasizing degree of an enlarging part (X1) is less than that of a non-enlarging part (X2), when the display frame (X) enlarges as the host vehicle moves.