Abstract: A video aiming with 1 mil accuracy and 15~25 meters aiming distance has been developed. It consists of image acquisition system and display system. The former includes optical lens, CCD image sensor and picatinny rail, and the latter includes sub-dash generator, button control panel, monitor and power conversion module. By applying the technology of on screen display, the electronic sub-dash is produced with the use of MAX7456 ship. The experimental results indicate that this video aiming could generate electronic sub-dash accurately and display the target image clearly. It also has the advantages of aiming in real-time, simple operation, flexibility and reliability.