[Background and Objective] :Air leak produced after thoracic surgery is a common phenomenon.Prolonged chest tube placement can lead to empyema or infection, and extended hospitalization or even death. In 2010 many researchers reported that The incidence of lung resection produce air leak about 8-26% (Singhal et al., 2010), and even up to 50% (Mueller & Marzluf, 2014).How to effectively treatment is still not clear.The chemical pleurodesis is an effective option in management of air leak.There are several chemical agents for pleurodesis, such as tetracycline and minocycline, talc, Taurolidine, bleomycin, iodopovidone, picibanil (OK-432), silver nitrate, quinacrine. What kind of chemical agent effective remain controversial. A study evaluated after thoracoscopic operation for primary spontaneous pneumothorax the safety and efficacy of chemical pleurodesis with a comparison between minocycline and OK-432. The OK-432 pleurodesis (19 patients) as the primary treatment and the primary success rate was 95%.(How et al., 2014).Another retrospective case-control study examining post-isolated lobectomies and bilobectomies by thoracotomy of Persistent air leak，sclerosis (talc, bleomycin, minocycline, doxycycline)for the treatment of prolonged air leak was successful in 40 of 41 patients (the success rate of 97.6%) (Liberman et al., 2010). The prolonged air leaks after major pulmonary resection still no empirical treatment of clinical research.