Abstract: The Chongqing reach of the upper Yangtze River is characterized by large water surface slope, riverbed material armoring (coarse bed material) and less relative smoothness. In view of these special characteristics, 47 years measured data of cobble bed load transport rate with the corresponding hydraulic parameters collected by Cuntan Hydrological Station have been taken as the basic data in analyzing and comparing the calculation accuracy of five classic formulae. In the light of Fredsoe(1976) formula having the higher calculation accuracy, taking Θ and Θc as the main parameters, a formula is established and fitted suitable for calculating the bed load transport rate in the Chongqing reach of the upper Yangtze River in this paper. It is shown from the analysis and comparison that the calculation accuracy of the formula is higher than that of the classic formula and Wei Li (2010) formula mainly aiming at the Chongqing reach when the intensity of bed load transport of the Chongqing reach is calculated, and that this new formula can well reflect the reality of the cobble bed load transport in the reach.