Abstract:Taking Huxi Area of Nanchang High-tech Development Zone as an example, based on the regional rainfall and terrain data as well as an example, according to the rainfall data, topographic data and drainage system data of the studied area, the professional dynamic coupling simulation system is used to simulate the drainage pipeline network, open channel, river, each hydraulic structure and the flow state of two-dimensional slope water, which can intuitively express the surface runoff and pipeline network drainage conditions, and find out the waterlogging causes and points. The relevant solution is proposed. This simulation can also approve the effect after implemented.