generally speaking, it is not allowed to sue in different places, and China's civil litigation follows the general jurisdiction principle of plaintiff against defendant. That is, the case is under the jurisdiction of which court the defendant is in. The location of the parties includes both the domicile of the parties and their habitual residence. If the other party's domicile or habitual residence is in a different place mentioned by the parties, it can be prosecuted in a different place; Otherwise, you can't. A civil action brought against a citizen shall be under the jurisdiction of the people's court of the defendant's domicile. If the defendant's domicile is inconsistent with his habitual residence, it shall be under the jurisdiction of the people's court of his habitual residence.

Civil Procedure Law of the People's Republic of China

Article 21 A civil action brought against a citizen shall be under the jurisdiction of the people's court where the defendant has his domicile; If the defendant's domicile is inconsistent with his habitual residence, it shall be under the jurisdiction of the people's court of his habitual residence. A civil lawsuit brought against a legal person or other organization shall be under the jurisdiction of the people's court where the defendant is domiciled. Where several defendants in the same lawsuit have their domiciles and habitual residences in the jurisdiction of two or more people's courts, each people's court shall have jurisdiction.

article 22 the following civil actions shall be under the jurisdiction of the people's court where the plaintiff has his domicile; Where the plaintiff's domicile is inconsistent with his habitual residence, the people's court of the plaintiff's habitual residence shall have jurisdiction over: (1) a lawsuit concerning identity relations brought against a person who does not live within the territory of the People's Republic of China; (2) Litigation on identity relations brought against persons whose whereabouts are unknown or declared missing; (three) the lawsuit against the person who has taken compulsory education measures; (4) Proceedings against imprisoned persons.