The Zhalong Wetland is a typical reed swamp. With the change of water condition there, land-use has changed. Farmland, residential area and salina have been increasing while the grassland is reducing. The wetland areas, such as lakes, reservoirs, swamp with open water and the reed swamp, are correlated with water amount variety. The swamp with open water is adverse correlated with reed swamp. Comparing with the change of farmland, salina and grassland, residentialland-use has the most impact on the wetland area.