A lighting apparatus includes a metal mounting fixed to a needed place such as a ceiling or a wall, rod-shaped holding metal fixtures, and a lighting apparatus body constituted by a chassis to which one end portion of each holding metal fixture is loosely fitted, a board which is fixed to the chassis and on which light emitting diodes are mounted as luminous elements, a reflecting panel, a cover (diffusing panel) that covers the light emitting diodes, and so on. By inserting the lock section of the other end portion of each holding metal fixture into an insertion hole and then locking each holding metal fixture on the metal mounting, the lighting apparatus body is held in a state of being separated from the metal mounting.