Piezoelectric lens driving device, camera, and electronic apparatus provided with camera

The invention belongs to the technical field of lens driving devices, and particularly relates to a piezoelectric type lens driving device. The device comprises a lens frame used for holding a lens; afixing part which is arranged at the periphery of the spectacle frame; a guide assembly which is arranged between the lens frame and the fixing part, so that the lens frame moves along the optical axis of the lens relative to the fixing part; and a piezoelectric driving part which is arranged between the lens frame and the fixing part and is used for driving the lens frame to move and focus; wherein the piezoelectric driving part comprises a first connecting part connected with the fixing part, a second connecting part connected with or propped against the side wall of the spectacle frame, ahollow deformation part connected between the first connecting part and the second connecting part, and a piezoelectric plate arranged on the deformation part; the hollow deformation part comprises atmost one first supporting