In this paper, subway stations in Beijing are divided into three types: traditional block, culture, science and education, and commercial. The geographical location, site public art element extraction, and public art application of the same type of sites abroad are compared and analyzed. The future development of public art in the subway is proposed as a people-oriented project that highlights regional characteristics and achieves public participation. This paper proposes that the location of public art at the site should be integrated, the topic of artistic creation should be further expanded, and the form of public art creation should be diversified. In addition, the use of public artworks to improve the environment of the subway station and to improve the passenger experience is explored. This paper provides reference and information for the future construction of public art in the subway.