The present invention relates to a camera module to adjust a focal distance by an actuator including a permanent magnet and a coil. The camera module comprises: a neutral area which is formed at one part of a permanent magnet to spatially divide a first polarity of the permanent magnet and a second polarity of the permanent magnet; and multiple detection sensors which face the neutral area and are arranged at intervals along a height direction (from the first polarity to the second polarity) of the neutral area to detect flux density.
