According to the "Implementation Opinions on Several Issues" of the Ministry of Civil Affairs
Five, about the marriage certificate in divorce registration.
If one party who applies for divorce registration loses his marriage certificate, the marriage registration office may handle divorce registration according to the marriage certificate of the other party; If the marriage certificates of both parties are lost, the marriage registration authority may handle the divorce registration according to the marriage registration files or marriage registration records provided by the parties. If a party loses his marriage certificate, he shall make a written explanation and file it with the marriage registration authority.
If the name, date of birth and ID number on the marriage certificate provided by the party applying for divorce registration are inconsistent with the ID card and household registration book, the reasons for the inconsistency shall be explained in writing.
Extended data
Article 10 If a mainland resident divorces voluntarily, both men and women shall register for divorce at the marriage registration office where one of the permanent residences is located. China citizens and foreigners voluntarily divorce in China Mainland, while mainland residents and Hong Kong residents, Macao residents, Taiwan Province residents and overseas Chinese voluntarily divorce in China Mainland. Both men and women should register for divorce at the marriage registration office where the permanent residence of mainland residents is located.
Article 11 Mainland residents applying for divorce shall submit the following documents and supporting materials:
(1) My household registration book and ID card;
(2) my marriage certificate;
(3) The divorce agreement signed by both parties.
When applying for divorce registration, Hong Kong residents, Macao residents, Taiwan Province residents, overseas Chinese and foreigners shall present valid passports and identity cards in addition to the documents and supporting materials specified in Items (2) and (3) of the preceding paragraph, and overseas Chinese and foreigners shall also present valid passports or other valid international travel documents.
The divorce agreement shall specify the expression of willingness of both parties to divorce and the consensus on matters such as child support, property and debt disposal.
References:
Opinions of the Social Affairs Department of Wenzhou Civil Affairs Bureau of the Ministry of Civil Affairs on Several Issues Concerning the Implementation of the Regulations on Marriage Registration