Amidst the ongoing development of rail transit and urbanization in China, station square planning with singlefunction can no longer meet the varied demands of urban construction. This study examined the construction history and related planning standards of station squares in Japan, conducted onsite research on station squares in multiple cities at different levels, analyzed the spatial planning and development methods for representative cases, and summarized the conclusions regarding Japanese station squares. The planning experience revealed the following recommendations: Pay attention to the spatial regulatory role of the station square in the integrated development of the station and city, and adjust the urban function of the square according to planning requirements. The construction of the square should be combined with the development characteristics of the surrounding areas of the station, focusing on the flexible layout and diversified use of the square. A cooperative organization should be established at each stage to focus on mutual communication and division of responsibilities among the various construction departments of the square, as well as the development of a continuous user participation mechanism and a complete square operation system, thereby hoping to provide reference and guidance for the sustainable development of China's rail transit and reasonable urban space planning.