AIM:To investigate the therapeutic efficacy of lens pitch hook chop on small incision hard nuclear cataract phacoemulsification and intraocular lens implantation.METHODS:One hundred and twenty-eight patients 128 eyes underwent 2mm straight limbal scleral tunnel incision,open capsulotomy,the lens was separated to the anterior chamber,the core was held with lens ring,the lens hook was put into the lens anterior surface,and the central nuclear was chopped slowly,and split ted into two part.After that,the intraocular lens was implanted.RESULTS:The vision of all the patients was recovered quickly.In 84 eyes(65.6%) of 128 patients the uncorrected visual acuity was more than 0.5 in postoperative day 1;113 eyes(88.3%) of 128 patients the uncorrected visual acuity was more than 0.8 in postoperative week 1.No serious complications happened postoperatively.CONCLUSION:This method has a good vision recovery and curative effect without special equipment.The equipment is easy,simple,safe,effective,economic and suitable for base hospitals and large-scale light action.