Objective To evaluate the application effect of pneumatic arm assisted single surgeon uniportal thoracoscopic surgery.Methods A total of 40 patients were admitted to our treatment group in Shanghai Pulmonary hospital in October who accepted pneumatic arm assisted single surgeon uniportal thoracoscopic surgery.All the clinic statistics of patients were collected including operative time,the volume of blood intra-operation,postoperative complications and hospitalization time.23 of 40 patients who accepted lobectomy/segmentectomy with pneumatic arm assisted single surgeon uniportal thoracoscopic surgery were assigned to the observation group,while another 30 concurrent patients who accepted lobectomy/segrnentectomy with conventional uniportal thoracoscopic surgery were assigned to the control group.Both groups were compared.Results The average postoperative hospitalization time of observation group was(4.6 ± 1.3) days.The average time for postoperative drainage tube retention was(46.7 ± 18.6) hours.The average operation time of patients in observation and control groups was(121.74 ± 25.16) min and (119.7 ± 14.26) min separately.The volume of blood intra-operation in observation group was(91.74 ± 32.88)ml and(89.00 ± 41.22) ml in control group.There is no significant difference between two groups(P ＞ 0.05).Conclusion The field of view and adjustment of camera in uniportal thoracoscopic surgery by single surgeon with pneumatic arm assistance are more accurate and steady,in which human resource can be saved.It is safe and reliable and does not prolong operative time or increase bleeding during operation,and can be applied to different kinds of diseases in thoracic surgery.It is worth promotion and application in eligible hospitals and medical institutions.