Bingcaogang Jinshajiang Bridge in Panzhihua City, Sichuan Province is an extra-large highway and urban dual-purpose bridge, which is a key construction project during the "Ninth Five-Year Plan" period of the city. The bridge site is located in Bingcaogang, the political, cultural and economic center of the city. The bridge is the main passageway connecting Zaoziping and Bingcaogang, and serves as the transit function of National Highway 108. This paper mainly introduces the design and construction of the cooperative system composed of single-tower cable-stayed bridge and T-type rigid frame.