Fixed connection structure of SMA wires, lens driving device and lens module

The utility model discloses a fixed connection structure of SMA wires, a lens driving device and a lens module. The fixed connecting structure comprises a supporting piece and a conductive connectingpiece used for being fixedly connected with an SMA wire, the conductive connecting piece is fixed to the surface of the supporting piece through a gluing piece, and the conductive connecting piece isprovided with a stepped surface lower than the upper surface of the conductive connecting piece at the dispensing position. According to the utility model, the step surface lower than the upper surface of the conductive connecting piece is arranged at the dispensing position of the conductive connecting piece, and glue can be partially retained on the step surface during dispensing operation, so that the contact surface of the conductive connecting piece and the glue can be increased, the bonding and fixing strength between the conductive connecting piece and the support piece is improved, andthe conductive connecting