Abstract: Series of 2D arbitrary parallactic pictures are worked out by computer-aided dynamic 3D graphics software.It supersedes the traditional way of making 2D parallactic pictures using film-camera or digital-camera.Thus dynamic 3D virtual image synthetic holograms can be realized.Also,an automatic recording system is introduced,including a spatial light modulator,an auto-partition servo and automatic shutter.It replaces the traditional manpower meddling,in order to optimize the recording process,improving the quality and efficiency of the hologram.