ObjectiveTo establish a sound management system for day surgery under the Joint Commission International (JCI) standard.MethodsFrom 2013, according to the provisions of JCI standard, a sound management system was established in the Second Affiliated Hospital of Zhejiang University School of Medicine by establishing the organizational structure of day surgery management, standardizing the operation process of day surgery, formulating standard operating rules and regulations, clarifying work responsibilities, strengthening the supervision of medical quality indicators at both hospital and department levels, and providing guidance for continuous performance.ResultsThe number of day operations in the hospital increased gradually, accounting for 25% of elective operations. During this period, there was no death of the patient, and these indexes remained low: the reservation cancellation rate of the patient was 0.9%, the transfer hospitalization rate was 0.23%, the unplanned reoperation rate was 0.012%, and the postoperative serious complications (bleeding, wound opening, etc.) was 0.03%.ConclusionThe establishment of day surgery management system under the JCI standard can standardize the development of day surgery and ensure the safety of patients.