In contrast to the rapid development of the construction of judicial informatization, the co-construction and sharing of criminal procedure information is obviously lagging behind. The informatization construction of criminal conducting authorities appears to be an isolated information island. This has caused serious waste of judicial resources and has become a fundamental problem hindering the overall construction of judicial informationization. The Criminal Procedure Information Interconnection Agreement refers to the consensus about the sharing and transmission of criminal information, approved by the public security, the procuratorate, and the court. The Agreement can effectively break the data barrier between criminal case handling agencies, which is a practical path promoting the co-construction and sharing of criminal procedure information. The formulation of the Agreement must coordinate the relationship between the technical rationality and the judicial principle. More specifically, it must properly cope with the potential negative effects of the co-construction and sharing of criminal procedure information, on trial-centered procedure system, transfer of case materials and evidence, equality between prosecution and defense, and judicial accountability. Meanwhile, the co-construction and sharing of criminal procedure information must handle the following problems in operation: proposing the Political and Legal Committee as the main authority of the agreement to formulate long-term development plans; further promoting the electronic production of criminal case files; implementing unified management of the physical evidence; and properly handling the issues of information confidentiality.