The overall technical scheme of binocular camera design satisfies the coincidence of the cursor points of the two cameras, and the design theory of the two cameras intersect at a fixed height and distance point, setting a fixed camera Angle. The camera only needs one degree of freedom adjustment. After adjustment, the camera is fixed and locked, and the focal length can only be adjusted at the use end. The appearance design conforms to the characteristics of industrial camera products, convenient finger operation to adjust the focal length of the camera, meet the weight reduction design of the whole machine.