There are no two marriage certificates to divorce, and the marriage registration authority can handle divorce registration according to the marriage registration file or the marriage registration record certificate provided by the party concerned, or it can first go to the civil affairs department to make up for it, and then register the divorce.
 Legal basis:
 Article 10 of the Marriage Registration Ordinance
 If a mainland resident wishes to divorce, both men and women shall jointly go to the marriage registration office in the place where one party's permanent residence is located to register for divorce. If Chinese citizens and foreigners divorce voluntarily in the mainland of China, and mainland residents divorce voluntarily with Hong Kong residents, Macao residents, Taiwan residents, and overseas Chinese in the mainland of China, both men and women shall jointly go to the marriage registration authority in the place where the permanent residence of mainland residents is located to register for divorce.
 Article 17
 If the marriage certificate or divorce certificate is lost or damaged, the party concerned may apply to the original marriage registration authority or the marriage registration authority in the place where one party's permanent residence is located for a replacement with the household register and identity card. The marriage registration authority shall verify the marriage registration files of the parties and, if it is confirmed to be true, shall reissue the marriage certificate and divorce certificate for the parties.