Due to the rapid urbanization experienced in the last decade, urban open areas are increasingly receiving more attention. Using modern technology, towns and communities may boost their appeal to both tourists and residents. This greatly increases their worth. Our research seeks to find places that might be used to compare the impact of urban open spaces on sustainable environmental values. Because of the social and societal benefits that building provides, interest in urban open space has surged in recent years. To ensure long-term sustainability, it is critical to investigate sustainable urban open spaces. Aims to identify characteristics of urban open space in building design and subjects to consider in public building design to promote urban sustainability. On the environmental front, there is a push to prioritize sustainability. Furthermore, historical value is preserved in people's memory as a trace of location, inspiring future generations. Also, public architecture provides locations for people to gather and watch programming. For economic sustainability, it was shown that reduced costs from material recycling, building refurbishment, or environmental influences saved energy. Finally, when evaluating public architecture, consider the voiding of urban space by architectural devices. In other words, the goal is to establish a foundation for the city, which will ultimately improve it. Skin and substance are affected by the environment, thus both must be tough and enduring. Also, programming that addresses both local and environmental concerns should be made available. This review aims to illustrate how China's national urban green space systems work. To evaluate the strengths and flaws of urban planning policy and green space system, critical thinking is required. The review aims to improve quality of people life in cities and also promote sustainability. Overall, the urban environment has improved through supporting long-term city management and integrating various city places. Despite these concerns, national policies and laws lack quality and quantity guidelines for green space. The knowledge on green space governance, management rules, and competencies is very lacking.