Abstract:〔Abstract〕 Objective To investigate the clinical effects of thoracoscopic bullaeectomy for pulmonary bullae on patients' body stress response and postoperative complications. Methods 52 patients with pulmonary bullae who were admitted to the Southeast Central Hospital of Dongguan from July 2016 to July 2020 were selected as the research objects. According to the different treatment methods, they were divided into the conventional group (simple closed drainage treatment) and the study Group (treatment with thoracoscopic bullaeectomy), 26 cases in each group. Comparison of drainage tube indwelling time, operation time, postoperative pain score, quality of life comprehensive assessment questionnaire (GQOL–74) score, postoperative cortisol (Cor), norepinephrine (NE), and angiotensin II (Ang II) were compared between the two groups ) Level, and complication rate. Results After treatment, the drainage tube indwelling time and operation time of the study group were shorter than those of the conventional group, the postoperative pain score was lower than that of the conventional group, and the GQOL-74 score was higher than that of the conventional group, the difference was statistically significant (P < 0.05) After treatment, the levels of Cor, NE and AngⅡ in the study group were lower than those in the conventional group, and the difference was statistically significant (P < 0.05); the adverse reaction rate of the study group was 3.85%, which was significantly lower than 23.08% in the conventional group. The difference was statistically significant (P < 0.05). Conclusion The use of thoracoscopic bullaeectomy for the treatment of pulmonary bullae can shorten the operation time, the drainage tube indwelling time, reduce the surgical stress response, relieve pain, and reduce the incidence of postoperative complications, which is very conducive to the recovery of patients.