Abstract: Femtosecond laser has become commonly used in the laser corneal refractive surgery. The surgery has been classified by the application of femtosecond laser into two main groups, the femtosecond laser assisted laser in situ keratomileusis (FSLASIK) and refractive  lenticule  extraction (ReLEx) or allinone femtosecond laser refractive surgery. ReLEx can be divided into femtosecond laser lenticule extraction (ReLExflex, FLEx) and femtosecond small incision lenticule extraction (ReLExsmile, SMILE). This article reviews the newest flap parameters including sidecut, thickness ,diameter ,shape of FSLASIK, the diameter and position of  incisions, and the latest setting in terms of spot distance and energy of femtosecond laser in SMILE. Meanwhile, the prediction, safety, efficacy and the affection on the corneal sensitivity, as well as the advantages and disadvantages of these three procedures are reviewed.