The Duohua Extra Large Bridge project is a double-tower double-cable plane composite beam cable-stayed bridge with a total length of 1,260 meters, of which the main span is 528 meters. The tower is 265 meters high, 3 meters wide glass landscape trails are set on both sides of the main bridge, and 140 meters high sightseeing elevator is installed on the main tower. It is the world's first canyon landscape bridge. The project has a total investment of 1.138 billion yuan and started construction at the end of 2018. The main tower was successfully topped off in January and April 2021, and won the 2020 Guizhou Province Construction Safety and Civilized Construction Model Site. It is expected to be completed in 2022. After the completion of the Duohua Bridge, it will become a landmark building in Guizhou. It will open up the traffic barriers in the key tourist area of Longli, Guizhou and the inland economic pilot area of central Guizhou, and greatly improve the traffic and travel conditions in the core tourist area of Longli. The tourism economy, residents' travel and employment will bring positive benefits, and actively promote the development of the Longxi inland open economic development pilot zone in the middle of Guizhou and the development of Longli tourism, which will become another beautiful landscape of colorful Guizhou.