Objective To investigate the curative effect and complication of phacoemulsification at the first stage of the beginner.Methods A retrospective review of collected 109 eyes of 100 patients,who were followed-up for 0.5 - 2 years.Resnlts Ninty-eight eyes had completely successful phacoemulsification.Eleven eyes changed to undergo extracapsular cataract extraction and intraocular lens implantation (ECCE +IOL).The corrected visual acuities of eyes less than 0.1 were 5(4.59% ),between 0.1 -0.5 were 43 (39.45 % ) and better than 0.5 were 61 (55.96%) after the surgery.A month after phacoemulsification,the corrected visual acuities of less than 0.1 were 4 eyes ( 3.67% ),bettween 0.1 -0.5 were 31 (28.44%) and better than 0.5 were 74(67.89% ).Corneal edema occurred in 25 eyes (22.94%).There were posterior lens capsule rupture in 16 eyes ( 14.68% ),the incision without closure in 7 eyes (6.42%),iris damage in 5 (4.59%),partial rupture of capsulorhexis in 4 eyes ( 3.67% ),lens cortex left over in 3 eyes (2.75%),partial rupture of suspensory ligament in 2 eyes ( 1.83% ),detachment of Descemet' smembrane in 1 eye (0.92%),retinal detachment in 1 eye (0.92%),IOL inversion in 3 eyes (2.75%),IOL fall in vitreous cavity in 1 eye (0.92%).Condusion Beginners have more complications during phacoemulsification operation.There is a leafing curre. Key words: Early stage; Phacoemulsification; Complication; Learing curve