An image detection module comprises a base, a seat movably disposed on the
base, an image detection unit on the seat, a first guide member by which
the seat is joined to the base, moving relative to the base, a first coil
on either the base or the seat, a first magnet on either the base or the
seat and opposite to the first coil, a first auxiliary magnet on either
the base or the seat, corresponding to the first magnet and the first
coil between the first magnet an the first auxiliary magnet, and a first
Hall element on either the base or the seat and adjacent to the first
coil. A magnetic force is generated between the first coil, the first
magnet and the first auxiliary magnet by a voltage provided to the first
coil, moving the seat along the first axis along the first guide element.