A projection display device for a vehicle which allows visual recognition of a virtual image of a display image from a predetermined eye point, the device includes: a projection portion which projects light to be imaged as the display image on a display surface which is formed by a light reflection member in a windshield of a vehicle or in the vicinity of the windshield; an optical system which guides the light projected from the projection portion to the display surface; and an adjustment mechanism which adjusts the light before being introduced to the optical system so as to allow light derived from a curved image of which at least a part is curved to be introduced to the optical system.