Chinese RMB is the official and legal currency in circulation in Jiuzhaigou National Park. Use of foreign currencies is generally not allowed. There is no Bank of China located around Jiuzhaigou National Park. When you travel to Jiuzhaigou, you are suggested to exchange enough cash in advance. If you have a bank card from the Agricultural Bank of China or the Construction Bank of China, that will be very convenient for you to access your money. Both of them are available for travelers in Jiuzhaigou National Park.
The Agricultural Bank of China Jiuzhaigou branch Jiuzhaigou office is located next to the Tourists Center at the entrance and the Construction Bank of China Jiuzhaigou branch Jiuzhaigou office is located in Yinxin hotel next to the entrance. Both of them have ATM machines. It is very convenient to withdraw money in Jiuzhaigou National Park. In Jiuzhaigou National Park, you can find the currency exchange services at Jiuzhaigou Airport and top-end hotels (Normally 4 stars to 5 stars hotels such as Sheraton Jiuzhaigou Resort or InterContinental Resort Jiuzhai Paradise). Here, you can exchange foreign currencies to Chinese RMB.
When you travel to Jiuzhaigou National Park, you can find several IC phones which support long-distance calls at the entrance of the valley. The major scenic spots can be used trench China Unicom, mobile network PHS mobile handsets and telecommunications. The mobile phone network is very good in Jiuzhaigou National Park. Besides, you can also use internet to contact your friends. But one thing you should know is that the websites from foreign countries are forbidden by China's government. You can only use the websites which are from China. Please find more information about tips from WindhorseTour: Jiuzhaigou Travel Tips.