Standard Mandarin is the official national language of China. standard mandarin is spoken by the Han majority and many other ethnic groups in China. Nearly 1.2 billion people (around 16% of the world's population) There is some different between Thai languange and Chinese languange in many ways such as speaking and writing. These can lean to conversations problem. Most of Chinese people can not speak English. If tou are traveling to the China to meet with the culture shock because they can only speak their own language.