In case of recurrence or not being able to observe whole sinus during operation, we handle a combined middle and inferior meatal (by a trocar) maxillary antrotomy, a transseptal sphenoidotomy to irrigate and endoscopically check, totally remove fungal mass and fungi-bearing allergic mucin. Result: Follow-up by endoscopic and CT-scan, good results shown. Conclusion: Endoscopic surgery in treatment of fungal rhinosinusitis showed good results.