Due to the high degree of drug-resistance,extensively drug-resistant Acinetobacter baumannii(XDRAB) is difficult to eliminate by drugs,which increases the risk in clinical treatment.The mortality of the patient is extremely high once bloodstream infection appears.XDRAB has a high detection rate in respiratory tract because it is a respiratory tract colonization bacterium with low virulence,and lax monitoring and control management in hospitals.This paper discussed the following issues:problems existing in the management of respiratory tract colonization of XDRAB,the necessity of respiratory colonization bacteria clearance,the patients who need to remove colonization bacteria,the management of colonization and clearance,and the management of patients who do not need the clearance.Early detection of XDRAB colonization in the respiratory tract and timely clearance or managements of respiratory tract colonization can reduce refractory infections caused by the bacteria and prevent the spread of drug-resistant bacteria.