To report the effects of the vitrectomy combined with Nd:YAG 532nm laser on treatment of retinal vasculitis. METHODS:Data of 36 cases(36 eyes)with retinal vasculitis undergoing vitrectomy and Nd:YAG 532nm laser treatment were analyzed retrospectively. RESULTS:Two cases were retinal arteritis,4 cases were retinal phlebitis and 30 cases damnification were on both artery and vein of retina in 36 cases.The damnification of lens was in 1 case, iatrogenic retinal hole was in 6 cases and dialysis of ora serrata was in 3 cases in operation. 2 cases were of retina detachment again，2 cases of hyphema and 9 cases of ocular hypertension after operation.The best visual acuity of 36 cases were improved, which was 0.02 to 0.1 in 2 cases（6%）, 0.12 to 0.4 in 22 cases（61%）and 0.5 to 1.0 in 12 cases（33%）. CONCLUSION:Vitrectomy combined with Nd:YAG 532nm laser is an effective treatment for retinal vasculitis