The database of land use can provided more accurate and more scientific decisive information for the optimal management model of land resource if only spatial data origins are renovated periodically. In the process of constructing land use database in Jingbian County, the data collection, the decision on spatial data origins, the data handling to the construction of land use database are planned and evaluated based on GIS at county level. The flow diagram and the techniques of the work to minimize the information loss in transforming from the investigation result at present land use to the land use database are studied with the help of GIS.