Objective:To observe the clinic effect and method of small incision with chop technique extracapsular cataract extraction and IOL implantation and the change of the corneal curvature.Methods:A retrospect to be given to the 291 eyes of this operation and analyze the fitness,clinic effect and complication of the operation.Results:The eyesight of 189,221,229 eyes were 0.5 or above 0.5 at 1 week,1 month,and 3 month.Postoperative examinations at 1 week,1 month,and 3 month,the difference of changes in the corneal curvature were not significant between before and after the surgery(P>0.05).Conclusions:Small incision with chop technique extracapsular cataract extraction and IOL implantation was a effective way to cure cataract.The operation way was easy to use and fit to the basic hospital.Because no special instrument needed and the operation skill was simple to be mastered.