Pan-tilt driving device and pan-tilt assembly adopting same

The utility model relates to a pan-tilt driving device. The pan-tilt driving device comprises a holding arm, a first motor, a connecting frame which is used for fixing an imaging device, a connecting piece and a flexible printed circuit board, wherein the first motor comprises a shaft body, a rotor fixing piece which is connected with the shaft body, and a shaft cover which is fixed to the holding arm; the shaft body drives the rotor fixing piece to swing; the connecting frame and the rotor fixing piece are fixed to drive the imaging device to swing; the connecting piece is connected between the shaft body and the connecting frame; one end of the flexible printed circuit board is connected to the holding arm; the other end of the flexible printed circuit board is connected to the connecting frame; the length of the flexible printed circuit board in the swing process of the imaging device is kept unchanged. The utility model also relates to a pan-tilt assembly adopting the pan-tilt driving device.