The adoptive parents sued their adopted daughter for alimony.

The procedure for adoptive parents to sue their adopted daughter for alimony is as follows:

1. When a party files a lawsuit, it shall first submit an indictment and submit corresponding copies according to the number of the other party. If the parties are citizens, the names, gender, age, place of origin and address of both parties shall be stated. If the party is a unit, the name, address, legal representative or person in charge of the unit shall be stated. The body of the indictment shall specify the facts and reasons for the request and prosecution, and the tail shall be signed or stamped with the official seal;

2. According to the principle of who advocates who gives evidence, the plaintiff submits the materials of the plaintiff's subject qualification to the court. If the enterprise is the plaintiff, it shall submit a copy of the business license, business registration certificate and other materials. And evidence to prove the plaintiff's claim. Such as contracts, agreements, wills, creditor's rights documents, IOUs, IOUs, acceptance and mailing, correspondence, etc. ;

3. When submitting documentary evidence to the court, the parties shall fill in the list of evidence in duplicate, indicating the name and pages of the evidence submitted. After the evidence is checked by the court undertaker, the undertaker shall sign and seal the list of evidence, one for the parties and one for the file;

4. After acceptance, if the conditions for prosecution are met, the people's court shall file a case.

Legal basis: Article 123 of the Civil Procedure Law of People's Republic of China (PRC).

The prosecution shall submit a complaint to the people's court, and submit copies according to the number of defendants.

If it is really difficult to write a complaint, it can be made orally, which will be recorded by the people's court and the other party will be informed.

Article 124

The complaint shall contain the following items:

(1) The name, sex, age, nationality, occupation, work unit, domicile and contact information of the plaintiff, the name and domicile of the legal person or other organization, and the name, position and contact information of the legal representative or principal responsible person;

(2) Information such as the name, gender, work unit and domicile of the defendant, and information such as the name and domicile of the legal person or other organization;

(3) the request and the facts and reasons on which it is based;

(4) Evidence and its sources, names and residences of witnesses.