The project is located in the roof space above the Buji sewage treatment plant in Shenzhen, which is different from the normal ground park. The municipal road and the roof space are connected through bridges to create a friendly landscape that is open to the surrounding residents. With the theme of the operation and ecological significance of the sewage treatment plant, Siqing Park has set up educational gardens, educational devices and educational signs to enhance residents’ awareness of sustainable development. The building facade adds vertical greening, enriches the green landscape level, enhances the green permeability of the three-dimensional space, forms a complete and stable ecosystem, realizes self-regulation and self-preservation, and ultimately plays a role in improving the local ecological environment.