To provide a magnet drive, capable of attaining compactness of size, high torque efficiency and ease of assembling.

This magnet drive includes a pair of stator yokes 2, 7, which journal both ends of a rotor magnet formed, by integrating a magnet 3 and a drive arm 6 with two poles polarized by a first and a second bearings 4, 5 and having circular magnet pole parts 2c, 7c, arranged so as to face each other by forming a gap for the magnet, a pair of stator yokes 2, 7 provided with straight paths 2a, 7a which come into contact with each other for forming a magnet path, and a coil wound about a coil bobbin 1 for energizing the yokes 2, 7. In the magnet drive, straight parts 2a, 7a are inserted through rectangular holes 4b, 4c of a bearing 4 into the rectangular hole 1a of the coil bobbin 1, the yokes 2, 7 are incorporated to the bearing 4 with the coil bobbin 1, and the hook parts 2b, 7b of the yokes 2, 7 are engaged with the second bearing 5, thereby integrally fixing the first and the second bearings 4, 5.