Abstract: A starry sky display apparatus comprises a mirror having a reflecting film, the reflecting film having a plurality of light transmission holes defined therein in a scattered pattern, and a light source unit disposed behind the mirror for emitting light to the mirror. The light emitted by the light source unit passes, through the transmission holes to a front face of the mirror, to produce and display a group of star images. The starry sky display apparatus produces and displays the group of star images in sharp focus with a depth feel in a dark environment and is used as an ordinary mirror in a bright environment.