A: The major banks in China are Bank of China, China Industrial and Commercial Bank, Agricultural Bank of China, as well as China Construction Bank. English service is available in some big branches of these banks because staffs here are proficient in English. The following information is about the official websites and service numbers of major banks in China. Hope it will help you.
Bank of China: (Service number: 95566)
http://www.boc.cn/en/index.html
Industrial and Commercial Bank of China: (Service number: 95588)
http://www.icbc.com.cn/icbc/sy/ 
Agricultural Bank of China: (Service number: 95599)
http://www.abchina.com/en/hq/index.jsp/lang=en/index.html
China Construction Bank: (Service number: 95533)
http://www.ccb.com/en/home/index.html