Abstract: A lens drive device may include a movable lens body provided with a lens and a drive mechanism for moving the movable lens body in an optical axis direction of the lens. The drive mechanism may include a drive coil, a magnet comprised of a plurality of magnet pieces, and a holder body which holds the magnet. The magnet may be disposed so that predetermined gap spaces are formed between opposite end faces of the plurality of magnet pieces, and the respective magnet pieces may be adhesively bonded and fixed to the holder body by using a first adhesive means, and a second adhesive means may be disposed in the gap spaces and between the end faces of the magnet pieces.