AIM:To observe the influence of phacoemulsification combined with goniosynechialysis(Phaco-GSL) on anterior chamber and intraocular pressure(IOP) for primary angle-closure glaucoma(PACG) with cataract patients·METHODS:Totally 36 patients(36 eyes) with PACG and cataract were randomly divided into observation group of 18 patients and control group of 18 patients,the observation group underwent Phaco-GSL treatment,the control group was treated with simple Phaco surgery,changes in anterior chamber structure,IOP and visual acuity were recorded before and after the surgery·RESULTS:The patients with postoperative anterior chamber angle opening greater than 270° were 18 cases(100%) in the observation group,10 cases(56%) in the control group,the comparison between two groups was statistically significant(P <0.01);Postoperative anterior chamber deepened 1.208±0.181mm in the observation group,0.883±0.074 mm in the control group,the comparison between two groups was statistically significant(P<0.01);The patients with postoperative IOP decreased to the normal range in the case of no drug treatment were 15 cases(83%)in the observation group,9 cases(50%)in the control group,the comparison between two groups was statistically significant(P<0.01);All the postoperative visual acuity had improved,but the comparison between two groups was not statistically significant(P>0.05)·CONCLUSION:Phaco-GSL can significantly improve anterior chamber structure with effective lowering IOP to achieve the desired therapeutic effect for the patients of PACG with cataract.