An image display apparatus includes: (A) an image forming device; (B) an optical system that converts light emitted from the image forming device into parallel light; (C) an optical device to which the light beams converted into the parallel light by the optical system enter, in which the light beams are guided, and from which the light beams are emitted; and (D) a supporting member that pivotally supports at least the image forming device with respect to the optical device. An assembly of at least the image forming device and the supporting member has a center of gravity at a position apart from the pivoting central axis of the supporting member. At least the image forming device is pivoted with respect to the optical device by gravity. As a result, the image forming device is horizontally held even when the optical device moves.