Subtalar arthroereisis implant has been recognized by clinicians to a certain extent because of its minimal trauma,quick re-covery and easy operation.As an operative method for the treatment of flat foot in children,it has achieved good results.However,its clinical efficacy remains controversial for the treatment of acquired flat foot in adult,whereas which has still been recognized by some scholars.We reviewed the literature on subtalar arthroereisis implant use in adult acquired flat foot in recent years,reviewed the new progress in the stag-ing classification of the foot,arthroereisis implant classification and clinical consequences of arthroereisis implant used for adult acquired flat foot in this article.