In order to ensure the implementation of the marriage system of freedom of marriage, monogamy and equality between men and women, China laws and regulations have made strict provisions on the management of marriage registration. According to Article 4 of the Marriage Registration Ordinance, when a mainland resident marries, both men and women should * * * register at the marriage registration office where one of the permanent residences is located. The following documents and certificates should be held when applying: ① my household registration book and ID card; (2) I have no spouse, and I have no lineal blood relatives and collateral blood relatives within three generations.