CST platform scanner is the most advanced apparatus in the world. It is mainly used to scan large-scale practical things. It can scan widlier, highlier and faster than the typical scanners. For example, it can scan the picture surface of 2100mm*1200mm and the stones, pieces of wood, metals which are 65mm high, the speed of scanning can reach 25-30M/min. The advant-ages are short-time for scanning, making pictures in one time, no loose, no traumatism and high resolution rate.