It is of great significance to digitize ancient paintings and calligraphy, especially for a country with five thousand years of history and rich cultural heritages. Millions of paintings and calligraphy are haunted by various diseases or even natural disasters and the only way to eternalize them is to store their digital replica in computers, which many museums and libraries are planned or started to do. A typical way to acquire them is use a linear CCD based large area table scanner. But this kind of solution has great drawbacks in terms of precision as well as scanning range, which prohibit its use in museums and libraries. Our lab has recently developed a new equipment to solve these drawbacks and hopefully it would shed new light on the documentation of ancient paintings and calligraphy.