An illumination apparatus for vehicles includes a light source, a fixed-image light valve, and a projection-lens set. The light source may generate illumination light of one or multiple various areas, and the fixed-image light valve has a fixed image of one or multiple various areas, respectively corresponding to the illumination light of one or the multiple various areas to transform the illumination light into image beam. The projection-lens set has one or multiple various projection lenses corresponding to the one or the multiple various fixed images, wherein a central axis of the fixed image and an optical axis of the corresponding projection lens are not on the same axis.