A lens drive device may include a movable lens body provided with a lens, a support body which movably supports the movable lens body through a plate spring in an optical axis direction, and a magnetic drive mechanism for driving the movable lens body in the optical axis direction. The plate spring may include an outer side connecting part connected with the support body, an inner side connecting part connected with the movable lens body, and an arm part which is connected with the inner side connecting part and the outer side connecting part through an inner connecting portion and an outer connecting portion. The arm part may include a meandering part which comprises a plurality of extending parts which is extended in a radial direction is serially connected through inner side turning portions and outer side turning portions.