SComplete barrier-free facilities are an important gauge of urban civilization. Suzhou has entered a moderately aging society. With the increase of age, the proportion of elderly people with degraded body functions is increasing. It is an important responsibility of urban construction to provide infrastructure that can satisfy transportation for the disabled. Rail transit is the main mode of transportation that carries urban public transportation. The construction of a barrier-free environment for rail transit stations is the epitome of the "universal design" of barrier-free access for the whole society. Some stations of Suzhou rail transit are selected through questionnaire surveys, seminars and field research , Investigate the construction of barrier-free facilities for rail transit, analyze the problems and needs encountered by passengers in the process of using related facilities, and guide the direction of subsequent optimization and improvement research work.