"Building French Style" is a decree issued by Song Lizong Shao Xi in the seventh year (1 196). It stipulates the construction procedures and technical standards of architecture and civil engineering. Among them, there are strict regulations on the size, proportion, shape, structure, decoration, materials and other aspects of the building, which constitute a part of the ancient building standards in China. The Style of Construction Bureau is a specification issued in the first year of Song Lizong (1253), which stipulated the standards and procedures of government building to ensure the quality of government-built buildings. This specification specifies in detail the requirements of various dimensions, proportions, structures, sculptures and other aspects of the building, as well as the technical standards of fire prevention, theft prevention, drainage and ventilation.
These national standards and norms are of great significance to the architectural history and cultural history of China, and also have important implications for today's architectural research and practice.