Chinese Arctic and Antarctic Administration (CAA), which is affiliated to the State Oceanic Administration (SOA) of China, responsible for the organization of Chinese Arctic and Antarctic Scientific Program ,as well as logistic support to the Antarctic expedition. Within the principles and framework of Antarctic Treaty System, supported by the two year-round base in Antarctica, namely the Great Wall station and Zhongshan station, and with addition of R/V Xuelong as a platform, CAA has been actively implementing its scientific research scheme in Antarctica and Southern Ocean.   The China Arctic Yellow River station was found in 2004 in Ny-Alesund, which provides China more opportunity to increase its scientific research scope in Arctic. China also organized its two Arctic scientific cruise by R/V Xuelong in 1999 and 2003 in the area of Bering Sea, Chukchi sea.   So far, 23 Antarctic expeditions and 3 Arctic scientific team have been organized. China is making its contributions to the scientific research and peaceful use both in Antarctica and Arctic.