Abstract: 　Objective　To assess the efficiency and safety of the bronchoscopic CO2 cryotherapy to remove bronchial foreign body in children. Methods　From Oct 2012 to Dec 2016, 8 cases diagnosed with the presence of bronchial foreign body were undergone the treatment with the bronchoscopic CO2 cryotherapy. The clinical data about the efficiency and complication were collected and retrospectively analyzed.  Results　In the 8 cases, we successfully removed the bronchial foreign bodies without complications. In 2 cases, the foreign bodies were removed successfully, but cryotherapy partially damaged the airway mucosa, causing topical airway obstruction because of the newly developed granulation tissue. No serious adverse reactions or complications were observed after the treatment. Conclusions　Removal of bronchial foreign bodies using bronchoscopic CO2 cryotherapy is an easy and effective method which can be used as a supplementary procedure for the bronchoscopic removal of foreign bodies in children’s airways.