Ya’an is a small but charmful city far from the chaos and polution of big cities. It is located in the transition area between Chengdu Plain and Qingzang Plateau and Yungui Plateau. With the average annual temperature between 14.1 ℃ -17.9 ℃, and the average annual rainfall of above 1000mm, there is neither too cold in winter nor too hot in summer. With the altitude between 515 – 5793m, the peculiar condition of biography and nature make it the paradise of various animals such as giant pandas, lesser pandas, golden monkeys and antelopes. Today, more than 300 pandas live in the wild forests in Ya’an. The protection center of panda in Bifengxia is also the largest research and protection center of panda in China.