This article is discussing a study that was conducted on patients with pontocerebellar angle tumors who underwent surgical treatment between 2012 and 2019. The study included 120 patients who were divided into two groups: the main group and the control group. The main group consisted of patients who underwent electrophysiological monitoring of facial nerve function during surgery, while the control group did not receive this type of intraoperative monitoring. The purpose of this study was to determine whether intraoperative monitoring of facial nerve function during surgery had an impact on the outcomes of the surgical procedure. The results of the study showed that patients in the main group, who underwent electrophysiological monitoring of facial nerve function, had significantly better outcomes than those in the control group. The findings suggest that monitoring the facial nerve function during surgery can help prevent facial nerve damage and improve the outcomes of the surgical procedure. This type of intraoperative monitoring is particularly important for patients with pontocerebellar angle tumors, as the facial nerve is often located in close proximity to the tumor and is at risk of damage during surgery. Overall, the study provides valuable insights into the importance of intraoperative monitoring of facial nerve function during surgery and its impact on patient outcomes.