1. Evidence to prove that the plaintiff enjoys intellectual property rights, such as the manuscript and original of the work, certification materials for the creation of the work, copyright transfer or license contract, patent certificate, trademark certificate, etc. ;
2. Evidence of the defendant's infringement, such as infringing copies, invoices for selling infringing copies, etc.
3. According to the provisions of Article 31 of Several Provisions on Evidence in Intellectual Property Civil Litigation, relevant records provided by the parties, such as financial account books, accounting vouchers, sales contracts, import and export documents, annual reports of listed companies, transaction data stored in equipment systems, evaluation reports, intellectual property licensing contracts, market supervision and tax records, etc. Can be used to prove the amount of compensation claimed by the parties for infringement of intellectual property rights.
Legal basis: Article 64 of the Civil Procedure Law of People's Republic of China (PRC), the parties have the responsibility to provide evidence of their own claims. The people's court shall investigate and collect evidence that the parties and their agents ad litem cannot collect on their own due to objective reasons, or evidence that the people's court considers necessary for hearing a case. The people's court shall comprehensively and objectively examine and verify the evidence in accordance with legal procedures.