Vehicle display device

A vehicle display device includes a housing mounted in a vehicle and having a light-shielding outer wall that forms an accommodation space, a slit being formed in the outer wall, a three-dimensional display surface disposed in the accommodation space and on which a real image is formed by display light, a projector disposed in the housing and configured to project the display light onto the display surface, and a reflector disposed outside the housing and having a reflection surface configured to reflect the real image toward an eyepoint in the vehicle. The shape of the reflection surface is a recessed shape such that light rays of the real image intersect in an optical path extending from the display surface to the reflection surface through the slit.