Sino Tibetan - Mandarin Chinese
Mandarin Chinese belongs to the Sino Tibetan family of languages. The language we call Mandarin Chinese in English goes by many names in the Chinese speaking world. While often referred to as Hanyu, it is also called Zhongwen.
Particularly in reference to the written form; Putonghua in Mainland China; and Hudyu in Singapore. Another it is the common language of the Han nationality. One of the world's major languages for business and diplomacy, and the world’s most widely used language.
And also Chinese is also one of the six official working languages of the United Nations (the others are English, French, Spanish, Russian, and Arabic). In addition to mainland China, Hong Kong, Macau, there are large Chinese speaking populations in Singapore, Malaysia and across Southeast Asia, as well as in Europe and the Americas. Native speakers of Mandarin Chinese in the world number more than 1.4 billion (30 million use it as a second language), or fully one-fifth of the world’s population.
As well as, Mandarin has another name. Chinese people always say it “putonghua” in mainland China，where it is the official national language. It is the common language of the modem Han ethnicity, which accounts for about 97% of the population of the People's Republic of China. And “Putonghua” takes Beijing pronunciation as standard. The northern dialect for its basic vocabulary, and a corpus of model modem Chinese writings as the standard grammar.