Title: Languages of China
Content:  1.34 billion spoke some variety of Mandarin Chinese as their first language, accounting for 71% of the country's population. According to the 2019 edition of Ethnologue, 904,000,000 people in China spoke some variety of Mandarin as their first language in 2017. Standard Chinese, known in China as Putonghua, based on the Mandarin dialect of Beijing, is the official national spoken language for the mainland and serves as a lingua franca within the Mandarin-speaking regions (and, to a lesser extent, across the other regions of mainland China). Several other autonomous regions have additional official languages. For example, Tibetan has official status within the Tibet Autonomous Region and Mongolian has official status within Inner Mongolia. Language laws of China do not apply to either Hong Kong or Macau, which have different official languages (Cantonese, English and Portuguese) from the mainland.
Title: List of multilingual countries and regions
Content: In Mainland China, Standard Mandarin (Putonghua) is the official language and is spoken in all regions. It is used for official and formal purposes, by the media, and in education as the language of instruction. However, on money notes, there are texts both in Mandarin (Han) and in Mongolian, Tibetan, Uyghur, and Zhuang. In every locality and region, local varieties of Chinese are spoken in daily life. These range from being quite similar to Putonghua, such as Tianjin dialect, to those that are mutually unintelligible with Putonghua such as Jiangsu, Zhejiang and Shanghai dialect (Wu) or Guangzhou dialect (Cantonese). In the autonomous 
Title: Languages of China
Content:  In China, English is used as a lingua franca in several fields, especially for business settings, and in schools to teach Standard Mandarin to people who are not Chinese citizens. English is also one of the official languages in Hong Kong.
Title: List of countries and territories where Chinese is an official language
Content:  As special administrative regions of China, Hong Kong and Macau list the ambiguous "Chinese" as their official language, although in practice, the regionally spoken Cantonese dialect is used by the government as the official variant of Chinese rather than Mandarin as on the mainland. Cantonese is also highly influential in the southern Chinese province of Guangdong, where the language originated. Despite Mandarin's status as the official language of China, the State Administration of Radio, Film, and Television (SARFT) has allowed local television and other media in Guangdong Province to be broadcast in Cantonese since 1988 in order to countermeasure against Hong Kong influence. Meanwhile, usage of the country’s other dialects in media is rigorously restricted by the SARFT, with permission from national or local authorities being required for a dialect to be the primary programming language at radio and television stations. Despite its unique standing relative to other Chinese dialects, Cantonese has also been targeted by the SARFT in attempts to curb its usage on local television in Guangdong. This was most exemplified by mass demonstrations in 2010 that resulted in the eventual rejection of the plans.
Title: Languages of China
Content:  English has been the most widely-taught foreign language in China, as it is a required subject for students attending university. Other languages that have gained some degree of prevalence or interest are Japanese, Korean, Spanish, Portuguese, and Russian. During the 1950s and 1960s, Russian had some social status among elites in mainland China as the international language of socialism. In the late 1960s, English replaced the position of Russian to become the most studied foreign language in China. After the Reform and Opening-up policy in 1988, English was taught in public schools starting in the third year of primary school. Russian, French, and German language classes have been made widely available in universities 
Title: China
Content:  Across northeastern and northwestern China, local ethnic groups speak Altaic languages including Manchu, Mongolian and several Turkic languages: Uyghur, Kazakh, Kyrgyz, Salar and Western Yugur. Korean is spoken natively along the border with North Korea. Sarikoli, the language of Tajiks in western Xinjiang, is an Indo-European language. Taiwanese aborigines, including a small population on the mainland, speak Austronesian languages. Standard Mandarin, a variety of Mandarin based on the Beijing dialect, is the official national language of China and is used as a lingua franca in the country between people of different linguistic backgrounds. Mongolian, Uyghur, Tibetan, Zhuang and various other languages are also regionally recognized throughout the country. 
Title: Chinese language
Content:  Standard Chinese, often called Mandarin, is the official standard language of China, de facto official language of Taiwan, and one of the four official languages of Singapore (where it is called "Huáyŭ" 华语/華語 or simply Chinese). Standard Chinese is based on the Beijing dialect, the dialect of Mandarin as spoken in Beijing. The governments of both China and Taiwan intend for speakers of all Chinese speech varieties to use it as a common language of communication. Therefore, it is used in government agencies, in the media, and as a language of instruction in schools. In China and Taiwan, diglossia has been a common feature. For example, in addition to Standard Chinese, 
Title: List of countries and territories where Chinese is an official language
Content:  Nearly every historic Chinese dynasty and state has had some form of Chinese as an official language. The spoken language of bureaucrats and officials, also known as Mandarin has been based on the local speech of the capital city by then. Historical governments associated with Korea, Japan, and Vietnam have also used Classical Chinese as an official written language, but for interpersonal communication used their respective native languages. Other states and countries that have used written or spoken Chinese in an official capacity include, the Manchukuo, the Ryukyu Kingdom and the Lanfang Republic.
Title: Taiwan
Content:   Mandarin is the primary language used in business and education, and is spoken by the vast majority of the population. Traditional Chinese is used as the writing system. The Republic of China does not have any legally designated official language, but Mandarin plays the role of the de facto official language. Since the May Fourth Movement, written vernacular Chinese had replaced Classical Chinese and emerged as the mainstream written Chinese in the Republic of China. But Classical Chinese continued to be widely used in the Government of the Republic of China. Most government documents in the Republic of China were written in Classical Chinese until reforms 
Title: List of countries and territories where Chinese is an official language
Content:  standard scripts, namely Traditional Chinese characters and Simplified Chinese characters. Today, Chinese has an official language status in five countries/territories or territories. In China and Taiwan, it is the sole official language as Mandarin, while in Singapore (as Mandarin) it is one of the four official languages. In Hong Kong and Macau it is co-official as Cantonese, alongside English and Portuguese respectively. Chinese is also an official language in the Shanghai Cooperation Organisation, and also one of the six official languages of the United Nations. Chinese was added as an official language in the United Nations in 1973, when the General Assembly made Chinese a working language.

Question: what is the main language used in china?
Answer: Chinese language.