（1） In terms of procedure, when the infringed party applies to the court for the malicious litigant to compensate reasonable expenses, it should collect bills of relevant expenses as evidence, such as lawyer's fee invoices, travel expense vouchers, etc., and submit them to the court in a timely manner. （2） On the entity side, if it is necessary to file a separate lawsuit to claim compensation for infringement damages, it is necessary to collect evidence that can prove its own reputation, property and other damages, such as relevant evidence of the reduction of social evaluation of reputation damage, and evidence of the specific amount of property losses. （3） If it is suspected that the malicious litigant constitutes a crime, it can report to the public security organ, cooperate with the police to investigate, and provide relevant clues and evidence of malicious litigation. Legal basis: According to Article 114 of the Civil Procedure Law of the People's Republic of China, if a litigant participant or other person has committed acts such as bringing a civil action with fabricated facts, the people's court may fine or detain him according to the seriousness of the case; If a crime is constituted, criminal responsibility shall be investigated according to law.
