Abstract:Aiming at the waterlogging situation very easily caused by the rainfall in the section of Shayang Road Bridge of G7 in Haidian District of Beijing, the historical rainfall and waterlogging data are used to carry out the investigating analysis and the watershed terrain analysis. Finally, the technical route of research on the waterlogging causes is analyzed. Based on the principle of respecting and maintaining the original natural drainage system and the problem-oriented, the waterlogging treatment scheme is formulated.