The "small incision" of Big data legal supervision model is used to promote the high-quality development and modernization of procuratorial work. From January to April this year, the contribution rates of digital prosecution to the discovery of clues and the handling of cases supervised by Beijing's procuratorial organs have reached 62.2% and 66.9% respectively, becoming a key variable driving the high-quality development of legal supervision. "Brainstorming" ignited the initial layout of Big data legal supervision, and Beijing's procuratorial organs ignited the "prairie fire" of digital procuratorial work by internal "brainstorming". On June 13, 2022, at the first forum of the "Jingjian Zhihui" series of theme salons, participating prosecutors held an open discussion around the theme of "Big data thinking in criminal prosecution" to promote the innovative practice of Big data enabled procuratorial concept change. Since then, more and more front-line prosecutors have divergent thoughts and sparks in the salon, and more and more Big data legal supervision models have been applied. The Party Group of the Beijing Procuratorate proposed that "criminal cases" and "criminal acts" are two concentric circles with unequal radii in the practice of the rule of law. Relying on digital prosecution makes the radius of the small circle of "criminal cases" being prosecuted closer to the radius of the large circle of "criminal acts" that have already occurred. "Dou Libo, prosecutor of the Intellectual Property Procuratorate Office of the Beijing Procuratorate, told reporters, The Big data legal supervision model created by the hospital to crack down on the rectification of bad sales of counterfeit goods, fully used the mass complaint data of the 12345 citizen service hotline, and achieved the "next step" in cracking down on the rectification of bad sales of counterfeit goods. Up to now, more than 400 clues have been transferred to the outside world, 19 criminal cases have been promoted, relevant functional departments have carried out four special inspections in key areas, and 28 administrative punishment decisions have been made, I handed over a transcript of my digital prosecutorial practice. One input, multiple outputs; Breaking ice in one place, blooming in multiple places. The reporter learned that the Beijing procuratorial organ continued to expand the application scenarios of the supervision model around the actual handling of cases, and promoted the large-scale application of the Big data legal supervision model from "bonsai" to "landscape". Consolidate consensus and draw a "design diagram", which opens up ideas and embodies the consensus on implementing the digital prosecution strategy. At the end of 2022, the "Opinions of the Beijing People's Procuratorate on Accelerating the Construction of" Digital Prosecutors "(hereinafter referred to as the" Opinions ") were issued after being reviewed and approved by the party group of the Beijing People's Procuratorate. The Digital Prosecutors' Office was established and substantive operation was promoted. This experience involves repeated research and argumentation, soliciting opinions, and eight revisions to the 'Yi'