From 20 14, Peking University Magic Weapon started the research on the judicial application of guiding cases in the Supreme People's Court, and continued to write and publish the research report on the judicial application of guiding cases by using big data analysis and empirical analysis methods, which was concerned and recognized by the legal and practical circles. 20 18, in order to make it easier for users to understand the research results of guidance case release and empirical application, "Peking University Magic Weapon" effectively combined the research report results with the database, launched the empirical application database of Peking University Magic Weapon Guidance Case, and continued to dig deeper into the research content. 202 1 newly launched the function of "guiding case publishing theme" to provide users with richer information and screening dimensions, and comprehensively improve the user experience.