Hydrological process is one of the most important factors affecting the wetland ecosystem.More and more wetland hydrologist focused on the water movement in the interface of the groundwater-soil-vegetation-atmosphere system,which is very important for researchers to investigate the ecological hydrology processes of the wetland.A comprehensive method,such as positioning monitoring,field survey,and numerical simulation was applied to reveal the transmission,interception and transformation process of the beach wetland of Poyang Lake.