Objective：To explore the clinical efficacy of Ahmed valve implantation in the treatment of refractory glaucoma. Methods：Totally 61 patients（63 eyes） with refractory glaucoma underwent surgery using Ahmed glaucoma valve. Changes of intraocular pres－sure and postoperative complications were observed. Follow-up was lasted for 24 months. Results：At one month postoperatively，in－traocular pressure（n=63） was changed from （43.53±6.42） mmHg to （16.29±4.02） mmHg and the success rate was 88.9%. For those eyes with the follow-up≥12 months（n=44），intraocular pressure was （17.16±5.05） mmHg and the success rate was 84.1%. Common postoperative complications included：shallow anterior chamber，hyphema，choroidal detachment，tube blockage，tube-endothe－lial touch，etc. Conclusion：Ahmed valve implantation is one of the effective methods for refractory glaucoma and this method can be widely used in clinics.