Objective To investigate the risk factors related to postoperative infection of inpatients in department of ENT. Meth- ods 939 inpatients in department of ENT from August 1st, 2012 to July 31st, 2013 were selected as the respondents. The clinical data of the patients were analyzed retrospectively, and the risk factors of postoperative infection were analyzed univariately and muhivariately. Results The postoperative infection rate of inpatients in department of ENT was 7.24%.The main infection site was respiratory system. Age, sex, duration of s...