Abstract: Objective：To evaluate the advantage of negative pressure suction followed by thin thoracic tube after thoracoscope operation.Method：During January 2019 to December 2020, we performed 87 thoracoscope operations, and they were randomly divided into experimental group(47 cases) and control group(40 cases).the experimental group use negative pressure suction followed by thin thoracic tube after thoracoscope operation，otherwise，the control group use routine medium caliber thoracic tube to drainage pleural hydrocele，analyze the differences between two groups by statistical treated data on  the extubation time after operaton，the gross of pleural effusion after operaton，the levels of lactate dehydrogenase(LDH) at 24 hours after surgery.Result：The extubation time was significantly shortened in the experimental group(P＜0.05).The gross of pleural effusion after operaton and the levels of lactate dehydrogenase(LDH) the moment ofafter surgery showed no significant between two groups(P＞0.05).Conclusion：The experimental group can shorted time of bearing drainage tubes after thoracoscope operation;the negative pressure suction followed by thin thoracic tube can not cause additional damage to thoracic cavity,and facilitate enhanced recovery after surgery.

Key words: thoracoscope, negative pressure suction, thoracic tube, enhanced recovery