I can't. Both parties are not registered in Xi' an, so they can't get a marriage certificate in Xi' an, and they must go to the civil affairs bureau where the household registration is located; If one party is registered in Xi 'an and the other party is not registered in Xi 'an, you can get a marriage certificate in Xi 'an and get it from Xi 'an Civil Affairs Bureau. According to the provisions of the Marriage Registration Ordinance, when a mainland resident marries, both men and women should * * * go to the marriage registration office where one party's permanent residence is located.

The procedure for obtaining a marriage certificate can be divided into three steps: application, examination and registration:

(1) application. To get married, both men and women must hold their household registration certificate, resident identity card, and a signed statement that they have no spouse and no direct blood relationship with each other and collateral blood relationship within three generations. * * * Register the marriage at the marriage registration office where one party's account is located. Both men and women must be present at the same time when registering. If you divorce, you should also hold a divorce certificate. Anyone who has a premarital examination should also hold a premarital examination certificate issued by the hospital.

(2) review. When examining the marriage application of both parties, the registration authority may, when necessary, require the parties to provide relevant certification materials, conduct necessary investigations, or designate items for medical appraisal.

(3) registration. After examination, the marriage registration authority considers that it meets the conditions for marriage, it shall grant registration and issue a marriage certificate. If the marriage registration authority refuses to register, it shall issue a written statement explaining the reasons for not registering.

Legal basis:

People's Republic of China (PRC) Civil Code

Article 1046 Marriage shall be voluntary by both men and women, and it is forbidden for either party to force the other, and no organization or individual may interfere.

Article 1047 The age of marriage shall not be earlier than 22 for men and 20 for women.

1048th lineal blood relatives or collateral blood relatives within three generations are prohibited from getting married.

Article 1049 If both men and women want to get married, they should apply for marriage registration in person at the marriage registration office. Those who meet the requirements of this law shall be registered and issued a marriage certificate. The marriage relationship is established when the marriage registration is completed. Those who have not registered for marriage shall re-register.

Article 1050: After a registered marriage, a woman can become a member of the man's family and a man can become a member of the woman's family according to the agreement of both men and women.

Article 105 1 The marriage is invalid in any of the following circumstances:

(1) Bigamy;

(2) Having a family relationship that prohibits marriage;

(three) did not reach the legal age for marriage.