The second divorce lawsuit, like the first divorce lawsuit, needs to provide evidence.
 Civil Procedure Law
 Article 121 Complaint
 The bill of complaint shall state the following:
 （1） The name, sex, age, nationality, occupation, work unit, address and contact information of the plaintiff, the name and address of the legal person or other organization, and the name, position and contact information of the legal representative or principal person in charge;
 （2） Information such as the name, gender, work unit and address of the defendant, and information such as the name and address of the legal person or other organization;
 （3） The claim and the facts and reasons on which it is based;
 （4） Evidence and source of evidence, name and address of witness.
 Marriage Law
 Article 32 Divorce proceedings
 If one of the men and women requests a divorce, the relevant department may mediate or directly file a divorce lawsuit with the people's court. When hearing divorce cases, the people's courts shall conduct mediation; If the relationship has really broken down and the mediation is invalid, divorce shall be granted.