Legal analysis: the evidence needed to sue for infringement of portrait rights is: 1, which proves the subject qualification of the parties; 2. Evidence to prove the existence of infringement facts: such as evidence of copying a portrait without the consent of the portrait right holder, or evidence of displaying, spreading, copying, using as a trademark or advertising its portrait for profit without the consent of the portrait right holder, and using its portrait on paper, books, newspapers, internet and other carriers to insult, damage or vilify the portrait of others. According to the relevant laws and regulations, the evidence needs to be verified before it can be used as the basis for ascertaining the facts.

Legal basis: Article 63 of the Civil Procedure Law of People's Republic of China (PRC). Evidence includes: (1) statements of the parties; (2) Documentary evidence; (3) Physical evidence; (4) Audio-visual materials; (5) Electronic data; (6) Testimony of witnesses; (7) Appraisal opinions; (8) Records of the inquest. Evidence must be verified before it can be used as a basis for ascertaining facts.