Zhonghua minzu (simplified Chinese: 中华民族; traditional Chinese: 中華民族; pinyin: Zhōnghuá Mínzú), usually translated as Chinese ethnic groups or Chinese nationality, refers to the modern notion of a Chinese nationality transcending ethnic divisions, with a central identity for China as a whole. It includes people of all ethnic groups in China who have historically interacted, contributed and assimilated to various extents with Chinese civilization.
Professor Suisheng Zhao, University of Denver, using extensive reading of primary sources noted that because "Chinese" or Zhonghua minzu as a conscious national identity (zijue de minzu shiti) only arose in the 19th century, since nationalism in the modern sense only appeared with the emergence of the nation-state system (Westphalian system) in Europe. Although the Chinese empire stretched back two millennia, it was largely a universalistic empire and not a nation-state before the 19th century.
The boundaries of Zhonghua minzu are fuzzy and controversial, but most Chinese today use the term to include all peoples within the territorial boundaries of China integrated as one national, political, and cultural group. It is sometimes also extended to overseas Chinese.
Zhonghua refers to the concept of "China" and is the term used in the formal names for both the People's Republic of China and the Republic of China. (See: Names of China) Minzu can be translated as "nationality", "people", or "ethnic groups".
Confusion can arise because the term "Chinese" in Western languages is often used to refer both to Zhonghua minzu and to the Han ethnicity, two concepts which are usually kept distinct among modern Chinese speakers.
Read more about Zhonghua Minzu: History, Implications, Ambiguity