The invention provides a binocular vision-based driving automatic positioning device. By means of the device, the labor intensity of workers is reduced, and the production efficiency is improved. The device comprises a driving rail, a large vehicle, a trolley, a lifting appliance and a bracket. The driving rail is fixed on the bracket. The driving rail is composed of a pair of parallel rail beams. The two ends of the length direction of the large vehicle are respectively erected on the corresponding rail beams of the driving rail, and the large vehicle conducts the linear reciprocating motion along the driving rail. The trolley is arranged on the upper part of the large vehicle. The trolley moves conducts the linear reciprocating motion in the length direction of the large vehicle. The lifting appliance is composed of a C-shaped lifting appliance. The lifting appliance is installed on the trolley through a lifting structure. The movement direction of the lifting appliance is perpendicular to the ground. The device is characterized by further comprising at least one pair of photoelectric sensors, binocular cameras and a computer. The two ends of at least one rail beam are provided with the at least one pair of photoelectric sensors, correspondingly. The binocular cameras are arranged at the two ends of the length direction of the large vehicle respectively.