An image display device of the present invention comprises projectors 20 and 21, a reflecting mirror 4, a screen 5, an image signal processor 1 which performs a distortion correction, and a base 6 for supporting the projectors 20 and 21, the reflecting mirror 4, and the screen 5. The projectors 20, 21, the reflecting mirror 4, and the screen 5 are assembled in one to constitute a single moving unit 7, and the image display device further comprises a lifting device 8 capable of moving the moving unit 7 in a vertical direction with respect to the base 6.