In Beijing, there is a 7.8km urban axis connecting the old city of Beijing from south to north, which we call "Beijing Central Axis". It is the longest and best preserved ancient urban axis in China and even in the world. As the carrier of Chinese traditional culture and the highest achievement in the planning and construction of the ancient capital of Oriental civilization, the central axis of Beijing has dominated the urban function and spatial pattern since the founding of Dadu in the Yuan Dynasty for more than 750 years. This route is not only the central landmark of Beijing, but also the wonderful mark of Chinese civilization. Today, the central axis still has strong vitality and historical depth. In the new planning blueprint of Beijing, this amazing urban landscape extends to the north and south sides again, connecting the Olympic Park in the north and the Daxing International Airport in the south. It has become a new axis that embodies the protection of the ancient capital and urban development.