Here is the information of marriage registration authority.
A marriage in China between a foreigner and a Chinese citizen or between two foreigners is considered a "foreign-related marriage". All cases of divorce in China concerning a foreign-related marriage must be filed with the court.
To apply for marriage registration in China, partners of the contemplated marriage should prepare the relevant certificates and go to the local Bureau of Civil Affairs.
This article has listed the essential certificates and documents you will need for foreign-related marriage registration.
Marriage between Chinese citizens and foreigners refers to marriage between Chinese citizens and foreign nationals, including Chinese holding foreign nationality, foreign nationals and stateless persons residing in China.