AIM:To evaluate the curative effect of the small incision somersault method cataract surgery under small pupil and intraocular lens(IOL) implantation.METHODS:Totally 41 patients(46 eyes)with cataracts underwent the small incision somersault method cataract surgery under small pupil and IOL implantation,the clinical effect and at the same time complications were observed.RESULTS:Three days after operation the uncorrected visual acuity of 20 eyes(43%) was better than 0.5.The uncorrected visual acuity of 22 eyes(48%) was between 0.5 and 0.3.The uncorrected visual acuity of 4 eyes(9%) was lower than 0.3.No obvious complication was found in all cases.CONCLUSION:The small incision somersault method cataract surgery under small pupil and IOL implantation both are safe and worth popularizing.