Abstract: Objective To explore the advantages of using digital process reengineering and Internet information technology to optimize the diagnosis and treatment process of obstetric clinic.Methods Process reengineering was carried out for multiple procedures.A closed loop of outpatient management was formed for high-risk pregnant women. A decision-making system was established for comprehensive management of outpatient department of obstetrics.Results The reengineering of obstetrical outpatient procedures and the establishment of the decision-making system have provided convenient digital prenatal care services for pregnant women,improved the efficiency of obstetrical services,and strengthened the management of high-risk pregnant women by medical personnel,so as to facilitate the real-time management of obstetrical outpatient work. It also improved quality of care and reduced investment in window services and human resources.Conclusion Digital process reengineering and Internet information technology have significant advantages in obstetric outpatient process management.