Despite the many advances in cataract surgery, incorrect intraocular lens(IOL)power remains a significant clinical problem which seriously affects the postoperative visual quality and satisfaction. Adjustable intraocular lens can be adjusted to provide a new way to solve this problem. The general concepts and clinical significances of adjustable IOL, as well as the designs and studies of several kinds of adjustable IOL, are described in this review. Adjustable IOL will give a new technological innovation to the cataract surgery to improve outcomes and increase expectations.