22 years old. According to Article 6 of China's Marriage Law, the age of marriage shall not be earlier than 22 years old for men and 20 years old for women, and the Civil Affairs Bureau shall not handle marriage registration under this age.
Documents and certificates for marriage registration
Article 5 of Chapter II of the Marriage Registration Regulations: Mainland residents who apply for marriage registration shall present the following certificates and certification materials:
(2) A signed statement that I have no spouse and no direct relatives or collateral relatives within three generations with the other party.
Hong Kong residents, Macao residents and Taiwan residents who handle marriage registration shall present the following certificates and certifying materials:
1, my valid pass, ID card;
(2) A statement notarized by the notary institution of the place of residence that I have no spouse and that I have no direct relatives or collateral relatives within three generations with the other party.
Overseas Chinese applying for marriage registration shall present the following certificates and certification materials:
1. Valid passport;
(2) A certificate issued by a notary or competent authority in the country of residence and certified by the Embassy (consulate) of the People's Republic of China in the country certifying that he has no spouse and no direct blood relation or collateral blood relation within three generations with the other party; Or a certificate issued by the Embassy (consulate) of the People's Republic of China in that country that the person does not have a spouse and does not have a direct blood relation with the other party or a collateral blood relation within three generations.
Aliens applying for marriage registration shall present the following certificates and certifying materials:
1. A valid passport or other valid international travel document;
(2) A certificate of no spouse issued by the notary or competent authority of the country where he is located and certified by the Embassy (consulate) of the People's Republic of China in that country or the Embassy (consulate) of that country, or a certificate of no spouse issued by the Embassy (consulate) of the country where he is located.