Soil and water conservation monitoring in Dingxi City was undertaken using the three kinds of data from a comprehensive monitoring on typical station, the interim monitoring points of the state key project and hydrological stations in Dingxi area. The comprehensive monitor station is located in Anjia catchment of Anding district, and is supported by information from a weather station network covering 21 surface flow districts, one bayonet check station and one meteorological station. The main hydrographic stations are at Donghe and Xihe River in Anding District. Other stations occur at Tongwei, Weiyuan, Lintao and Min County. The model has been observed and implemented by the Bureau of Hydrology and Water Resource of Dingxi Prefecture. The interim monitoring points are at the three dam systems of Anding District, Weiyuan and Longxi Countied, and the two major ecological rehabilitation project in Anding District and Tongwei County respectively.