Introduction:

Hanyu Pinyin is the official Chinese phonetic Latinization scheme for Chinese characters issued by the People's Republic of China*** and the State of China, which refers to the use of the letters and spellings specified in the Hanyu Pinyin Scheme to spell out the phonetic syllables of a modern Chinese language, the standard phonetics of the Mandarin language. It was developed by the Hanyu Pinyin Program Committee of the former Chinese Text Reform Commission (now the State Language and Literature Working Committee) during the 1955-1957 text reform. The pinyin scheme is mainly used for the labeling of Mandarin Chinese pronunciation, as a kind of Mandarin phonetic symbol for Chinese characters.The National People's Congress approved the publication of the scheme on February 11, 1958.In 1982, it became the international standard ISO 7098 (Chinese Roman alphabet spelling). Hanyu Pinyin is used in the teaching of Chinese in some overseas Chinese regions such as Singapore.

Hanyu Pinyin is a tool to assist in the pronunciation of Chinese characters. Article 18 of the Law of the People's Republic of China on the National Common Language and Writing System states, "The Hanyu Pinyin Program is a uniform specification for the Roman-alphabet spelling of Chinese names of people, places and Chinese documents, and is used in areas where the Chinese characters are inconvenient or inaccessible." The symbols written according to this set of norms are called hanyu pinyin.

Hanyu Pinyin is also universally recognized internationally as the modern standard for Latin transcription of Chinese. The international standard ISO 7098 (Chinese Roman Alphabet Spelling) reads, "The Hanyu Pinyin scheme, officially adopted by the National People's Congress of the People's Republic of China*** and of the State of China (February 11, 1958), is used to spell the Chinese language. The author records the pronunciation of the Chinese characters according to their Mandarin reading."