This paper is an attempt to contribute to the theoretical reconstruct of public space. First, it deals with the discursive imaginations of the public sphere and the public domain, such as Habermas, Forester and Friedmann's ideas of the public. Then, the concept of the production of space from Lefebvre and Soja is adapted and the masculine bourgeois centrality of the public space is criticized. Finally, the corporate takeover of urban public expression and the alternative project of public space are discussed. The author points out the implication of the project of the alternative city, that is, the city belongs to the citizen.