AIM:To investigate the clinical efficacy of endo-scopic sinus surgery for fungal sinusitis.METHODS:30 cases of fungal sinusitis were undergone endoscopic sinus surgery,pa-thology specimens were studied.After surgery,antibiotics were used as adjuvant therapy.RESULTS:30 patients were treated by surgery,and they were all cured.Nasal ventilation is good,and the symptoms disappeared,what''s more,maxillary sinuses were smooth.The patients were followed up for 6 to 1 2 mouths.No case was recurred and had complications.fungal infection was di-agnosed by pathological that Candida albicans had five cases,mu-cous had 1 2 cases,and aspergillosis had 1 3 cases.CONCLU-SION:Treating fungal sinusitis by endoscopic surgery has many characteristics,such as less invasive,good effect,shorten treat-ment time.This is an ideal way to diagnose and treat fungal sinus-itis.