Objective To evaluated clinical effects and effectiveness of dual-port video-assisted thoracic surgery(VATS)for secondary spontaneous pneumothorax.Methods The clinical data of 48 pa-tients with secondary spontaneous pneumothorax who underwent open thoracotomy(n =18)or dual-port VATS(n =30)were reviewed retrospectively.Mean operation time,mean postoperative drainage period and mean postoperative hospital stay between the two groups were compared.Results All surgeries were suc-cessfully performed without reoperation and severe complications.No patient was converted to thoracotomy in the VATS group.There were significant differences in mean operation time [(67.9 ±7.2)min vs (73.3 ±6.4)min],mean postoperative drainage period [(3.2 ±0.9)d vs(5.0 ±1.3)d],and mean postoperative hospital stay [(7.2 ±1.4)d vs(8.7 ±1.5)d]between the dual-port VATS and open thora-cotomy(P <0.05 ).Conclusion Dual-port video-assisted thoracic surgery can reduce postoperative drainage period and postoperative hospital stay and increase satisfaction.It has little influence on upper limb movement and improves postoperative recovery.