Lens driving device

The invention relates to a lens driving device. An electromagnetic driving mechanism of the lens driving device includes two circuit boards and two magnet modules, wherein the two circuit boards are attached to the periphery side of a lens mount, and the two magnet modules are fixed on the inner side of a box body. The two circuit boards are arranged in a back-to-back mode, and one or more printed coils are formed on each circuit board. The magnetic modules are opposite to and separated from the printed coils on the two circuit boards respectively. Two or more conductive terminals extend from each circuit board towards a spring component and make electric contact with the spring component, and therefore the spring component serves as a conductive path of the electromagnetic driving mechanism. According to the lens driving device, two sides of the lens mount are directly attached with the circuit boards with the printed coils, and by the conductive terminals which extend from circuit boards towards the spring