AIM:To discuss the application of bFGF in endoscopic dacryocystorhinostomy for the treatment of chronic dacryocystitis and for the prevention of long-term cicatri-cial adhesion of pore-forming rim after operation.METHODS:Thirty-seven cases (37 eyes) with chronic dacryocy-stitis were treated by endoscopic dacryocystor-hinostomy. The wound was coated with bFGF eye gel; the secretion,blood callus and granulation around the nasal lacrimal sac stoma were cleared during each follow-up; lacrimal passage was irrigated; after the epithelization of mucous membrane of the nasal lacrimal sac stoma,the tube was pulled out. RESULTS:After 6 months to 1 year,32 eyes were cured,4 eyes were improved and 1 eye was invalid. The effective rate was 97.3%,and there were no compli-cations. Invalid in 1 case was caused by proliferation and adhesions of granulation tissue around the nasal lacrimal sac stoma or nasal septum adhesion. After occlusion stoma was cleared under nasal endoscope and the patient was re-catheterized and got a better recovery.CONCLUSION:Endoscopic nasal surgery dacryocystor-hinotomy with application of bFGF has a good long-term effect,low recurrence rate,and seems to be a better method for the treatment of chronic suppurative dacryocystitis.