The invention relates to a camera lens mould train which comprises a lens barrel, a lens base and a driving device, wherein the driving device is connected with the lens barrel containing lenses and comprises a zero-order lever and a piezoelectric element, the zero-order lever is provided with a fixed end, a movable end corresponding to the fixed end and a connecting part positioned between the fixed end and the movable end, the fixed end is fixed relative to the lens base, and the piezoelectric element is supported between the lens base and the connecting part of the zero-order lever, has the capability of deformation in the optical axis direction of the lenses and is used for moving the movable end of the zero-order lever and the lens barrel relative to the lens base in the optical axisdirection of the lenses. Even though lower voltage is applied to the piezoelectric element, the lens barrel can make larger displacement, therefore, when the lens barrel makes larger displacement, only less energy is required.