Abstract: The construction of smart court provides a new opportunity for unifying the application of law. In July 2020, the Supreme People's Court issued the Guiding Opinions on Uniform Law Application to Enhance Case Retrieval (Trial). On this basis, in the mechanism, it is clear that the judgment of the higher court is binding on the judgment of the lower court in similar cases, and the judgment of the same court is binding on the later judgment of similar cases; in the technology, it is necessary to build a big data case platform to improve the existing technology level.