Under the background of promoting day surgery nationwide and ensure the medical quality, fine management is crucial and in trend. As one of the earliest central health organizations that started day surgery service in China, West China Hospital of Sichuan University has conducted approximate 140 000 day surgery cases in the past nearly 10 years. Based on the experience of practice, West China Hospital of Sichuan University has summarized 26 clinical indicators from 5 aspects to evaluate and monitor the economic efficacy and medical quality and safety of day surgery, including the input and output, the efficiency, the patient experience, the medical quality and safety, and the difficulty evaluation of surgery. The aim is to explore and establish an appraisal and monitoring system for day surgery, promote the stable development of day surgery, improve the work efficiency, and take the government plan of implementation day surgery to improve medical services into action.