In the era of rapid development of intelligent justice, constructing the unity of judicial adjudication has become increasingly critical. The unity of adjudication is not only related to judicial fairness but also constitutes the core element for enhancing judicial credibility. The mechanism of “same judgment for similar cases” serves as a pivotal path to achieve this unity, whose importance is self-evident. However, realizing true judicial unity is fraught with profound contradictions. These manifest in the tension between technological empowerment and judicial norms, the structural contradictions within the judicial management system, and the cognitive gaps within the legal community, all of which to some extent constrain the realization of adjudicative unity. To address these contradictions, it is necessary to explore a credibility-oriented collaborative governance approach, typified by innovating adjudicative rule-making mechanisms, strengthening the modernization of judicial capabilities, and optimizing social participation and supervision mechanisms. In summary, the construction of adjudicative unity in the era of intelligent justice requires fully leveraging the advantages of artificial intelligence while emphasizing the principal status of judges, striving to find the optimal balance between efficiency and fairness.