A vibrating mirror element includes a base member, a substrate made of metal, integrally formed with a mirror portion, a movable portion swingably supporting the mirror portion from both sides and functioning as a lower electrode, and a mounting portion supporting the movable portion and mounted on the base member, a piezoelectric film provided on the movable portion of the substrate and vibrating the mirror portion by application of a periodic voltage, and an upper electrode provided on the piezoelectric film.