According to Article 143 of the General Principles of the Civil Law of the People's Republic of China, if a Chinese citizen marries in a foreign country in accordance with local laws, his or her marriage relationship shall be valid in China as long as it does not violate the basic principles of China's Marriage Law and the social and public interests of the People's Republic of China, and the party concerned does not need to re-apply for marriage registration at the marriage registration office after returning to China. So marriage in Las Vegas is recognized in China.
Marriages in Las Vegas are recognized in China, but they need to be notarized. According to Article 143 of the General Principles of the Civil Law of the People's Republic of China, "If a citizen of the People's Republic of China settles abroad, the settlement law may apply to his capacity for civil conduct." If a Chinese citizen marries in a foreign country in accordance with local laws, his or her marriage relationship shall be valid in China as long as it does not violate the basic principles of China's Marriage Law and the social and public interests of the People's Republic of China, and the parties concerned do not need to re-apply for marriage registration at the marriage registration office after returning to China.
However, because the relevant Chinese departments cannot identify the authenticity and validity of their certificates, they need to apply for the corresponding notarization and consular certification in the local and Chinese embassies and consulates. The notarization procedure is: first by the United States notary public notarization procedures, then sent to the office of the Secretary of State certification, and finally to the Chinese consulate for certification procedures. If you want to use it in China, you must also go through the relevant translation procedures.