Abstract: Postural stability can reflect the human's ability to control posture.Evaluation of postural stability is an important aspect of the prevention from injury of subjects wity functional ankle instability.Firstly,this paper advanced that postural stability was more appropriate as a terminology to reflect the ablity to control posture than balance.Secondly,the subjective and objective methods of evaluating the static and dynamic postural stability of subjects with functional ankle instability were reviewed.Thirdly,the limitations of the existing methods were analyzed and summarized.It can provide a theoretical basis for the future research on methods of mearsuring and evaluating the postural stability of subjects wity functional ankle instability.