On November 14, the Legal Daily published an article entitled "Blockchain Technology Aids Judicial Cases." The article points out that the practical application of blockchain technology in judicial case handling and its important role are discussed. Shi Junqiang, head of the technical work of the People’s Procuratorate of Yixing City, Jiangsu Province, said that the blockchain’s decentralization, consensus mechanism and distributed accounting are technical features and intelligent and extremely difficult to tamper with. The fairness and justice are closely related, especially in the integrity and authenticity of the evidence materials, blockchain technology has more obvious advantages. Zhao Zhigang, director of the Procuratorate Technical Information Research Center of the Supreme People's Procuratorate, believes that evidence is the core content of litigation. The authenticity of evidence comes from the investigation and evidence collection at the source, from the storage and transfer of the middle. Either at the source or in the middle, the evidence has the possibility of being tampered with. This is not only the focus of procuratorial work, but also the problem of various criminal, civil and administrative litigation participants. Blockchain technology can guarantee the authenticity of the evidence after the chain, solve the problem of mutual trust in information interaction, and provide an opportunity to solve this problem with its authenticity guarantee and the technical characteristics of the chain not being tampered with.