Objective To explore the application value of RCA analysis method in improving the management of medical equipment-related near-miss events in ICU. Methods The ICU of a hospital in Xi'an used the RCA analysis method to analyze the medical equipment-related near-miss events. Firstly, the proximal causes of the medical equipment-related near-miss events were found out, and the root causes were found through brainstorming. Then, corresponding improvement measures were formulated according to the root causes, and the implementation of improvement measures were supervised. The management effects before and after the implementation of RCA analysis were compared and analyzed. Results After the implementation of RCA analysis improvement measures, in the statistics of the incidence of medical equipment-related near-miss events, the incidence of incomplete equipment accessories, the incidence of equipment self-test failure and the incidence of equipment alarm failure were significantly lower than those before the implementation of improvement measures (2=5.701, 2=5.128, 2=6.652; P<0.05). Conclusions RCA analysis method can significantly reduce the incidence of medical equipment-related near-miss events, so as to reduce the incidence of medical equipmentrelated adverse events. It can also improve the management quality of ICU departments and improve patients' satisfaction with inpatient services. RCA analysis can improve the management effect of medical equipment-related near-miss events in ICU. It is a scientific and effective medical activity management tool, and it has high application and promotion value in the management of near-miss events in hospitals. because near-miss events do not cause actual losses, medical staff often ignore the management of near-miss events. In fact, near-miss events are the early warning of adverse events, which have the same causes as adverse events, and there is a certain proportional relationship between near-miss events and the occurrence of adverse events [1][2][3]. By preventive management of near miss-events and reducing the incidence of near-miss events, the occurrence of adverse events can be prevented to a certain extent. As a management unit for the centralized treatment of critical patients, ICU needs all kinds of middle and high-end medical equipment to monitor and treat critical patients. Due to the medical staff's operation error of equipment, equipment failure and other reasons, the incidence of medical equipment-related near-miss events is high, which leads to the occurrence of medical equipment-related adverse events from time to time, causing a major impact on medical safety. In order to reduce the incidence of adverse events related to medical equipment in ICU, it is necessary to effectively manage the near-miss events.Root cause analysis (RCA) is a standard and systematic method to analyze the causes. Through retrospective scientific analysis of the existing problems, the root causes of the problems are found out and corresponding measures are taken to prevent similar...