A lens driving mechanism is provided, including a lens holder, a circuit unit, a driving element, and an integrated circuit element. The lens holder is used for holding a lens. The circuit unit is disposed on a side of the lens holder. The driving element is used for driving the lens holder to move relative to the circuit unit. The integrated circuit element is electrically connected to the driving element and disposed on the circuit unit. The driving element is disposed between the lens holder and the integrated circuit element.