Objective To investigate the effect of preoperative ultrasound-guided planetary ganglion block on postoperative sleep disorders in patients with supratentorial superficial intracranial tumor resection. Methods Sixty patients with supratentorial superficial intracranial tumor resection were randomly divided into stellate ganglion block group (group S, n = 30) and control group (group C, n = 30). The anesthetic induction and anesthetic maintenance drugs were the same in the two groups. Group S received ultrasound-guided right SGB before anesthesia induction, while group C could not SGB.The sleep of patients in the last month was scored by PSQI one day before operation , and the AIS was used to monitor the duration of deep sleep and the total length of sleep on the first night after operation. Results There was no significant difference in general data and preoperative PSQI scores between the two groups(all P0.05）. The total sleep time on the first night after operation in group S was (282.40 ±86.99) min, which was significantly higher than that in group C (233.03 ±85.39) min（P0.05）.The influence rates of postoperative awakening, total sleep time, total sleep quality and daytime body function in group S were 53.3%, 50.0%, 46.7% and 46.7%, respectively. It was significantly lower than that in the control group (80.0%, 80.0%, 73.3%, 76.7%) (all P0.05). Conclusion Preoperative planetary ganglion block can prolong the sleep time of the first night after operation, at the same time, patients can have better sleep quality.