The Fangyuan Building is a landmark building with extraordinary architectural concepts and strange exterior shapes. Its complex structural system and numerous design and construction difficulties bring challenges to both design and construction, as well as opportunities for innovation. The design and construction difficulties of this project include large-span prestressed transfer truss and prestressed self balanced tension beam column system. This project boldly explores and innovates the concept and construction technology of prestressed structure design, and has achieved valuable experience and results. To achieve an organic unity between the meaning of architecture and its structural functions