The real 3D stereoscopic display system is based on the light field scanning, which is realized by reconstructing the spatial distribution of object light intensity and reducing information redundancy. The entire system is designed with a high-speed projector, a directional scattering mirror, a circular stainless steel carrying disk, a rotating shaft and a micro electric motor. In this paper, the feasibility of developing the display system is discussed in detail by analyzing the principle of 3D display of light field, and the working principle of the system, and the system architecture, and the principle of stereo imaging. The experiment proves that the projection rate of the image matches the rotating circle of the rotating mirror and the rotating speed of the motor, which can be generated a stable 3D image. The accuracy of the image depends on the angle and quantity of the selected pictures. The smaller the angle of the selected pictures, the more number of pictures, and the more realistic 3D image will be presented.