To provide a head-up display 1 capable of attaining the suppression of display distortion and a high enlargement of a virtual image at a low cost.

As for the head-up display 1 for enlarging and reflecting an image 21 displayed on a liquid crystal display 14 by a concave mirror 11 and displaying an image 24 having an aspect ratio more oblong than the aspect ratio of the displayable area 23 of the liquid crystal display 14 as a virtual image on the front window shield of a moving body, the concave mirror 11 is constituted so that the magnification factor in a vertical direction is made lower than the magnification factor in the horizontal direction, and the image 21 which is enlarged in the vertical direction can be displayed by the liquid crystal display 14.