Abstract: Objective:To assess patients' tolerance for resection of the carotid artery before surgery by using the tem -porary balloon occlusion (TBO) technology, and to select the appropriate surgical method to improve the safety of surgery for the carotid artery. Methods:Before surgery 15patients underwent the blocking technology, using a balloon to temporari-ly block the carotid artery for 30min to observe and record the reaction of the nervous system. Intraoperative surgical meth-ods were selected according to TBO elevation and artery nub pressure. Carotid reservation or rebuilding was performed as far as possible. Permanent carotid ligation should be avoided if possible. Results: Fifteen patients underwent TBO assess -ment, including 12negative cases and 3 positive cases. Positive signs included the presence of neurologic symptoms dur-ing the temporary occlusion and an angiographically incomplete Willis' Circle. Among the 3 positive patients, 1 elderly pa-tient did not complete surgical treatment because of advanced cancer. Two cases underwent tumor and carotid artery re -section, and at the same time the carotid artery was reconstructed by artificial blood vessels. Permanent carotid occlusion was performed in 4 negative patients. Eight negative patients retained the carotid artery. Postoperatively, no negative pa-tients developed neurologic symptoms. In patients with surgical resection of the carotid artery without neurological dysfunction, artery nub pressure was more than 73mmHg.Conclusion:Temporary balloon occlusion is useful in evaluating whether a patient can tolerate carotid resection without developing neurologic deficits, and can assist in planning the best surgical treatment strategy by which a safe resection of the carotid artery is completed successfully.