Introduction to structural features: is an open-belly arc-shaped stone arch bridge with a clear span of 37m, a width of 9m, and an arch height of 7.23m. There are two abdominal arches with different spans on each shoulder of the arch ring. This can not only reduce the weight of the bridge, save materials, but also facilitate flood drainage and increase the beauty. The design concept and craftsmanship of Zhaozhou Bridge are exquisite. Open-shoulder arch bridges like this did not appear in Europe until the mid-19th century, more than 1,200 years later than in our country.