Square as special public space of the urban area plays an important role in the urban structure and urban life. Each square is constructed to represent one or several functions through space with the corresponding structure. To understand the public space functions of the square, the article analyzes and evaluates the current use of the square in the center of Ho Chi Minh City. Specifically, the squares such as Nguyen Hue Walking Street, Paris Commune Square, Me Linh Square, Quach Thi Trang Square and International Square. The methods used for the study included the collection and processing of available information, questionnaire surveys, quick interviews, and observation - participant research.