Glaucoma drainage valve implantation surgery is one of the effective treatment methods of refractory glaucoma, due to its remarkable clinical effect on controlling persistent intraocular pressure, more and more ophthalmologists favor this surgery as the first choice to treat refractory glaucoma, however, the long term success of this surgery is limited by its complications, since the complications are diverse, it is quite important to know how to prevent and treat those complications. This article aims to summarize causes and treatment to some common complications after the surgery.