Take the soil database establishment of Laixi City as an example, this article elaborates the essential techniques and process on how to establish soil database. After field sampling and investigation, the soil database of Laixi City was established on the basis of soil and land use status investigation data. Soil database of Laixi City consists of soil spatial database and soil attribute, component which were structured by the technique of MAPGIS and Visual FoxPro. Basic unit of soil spatial database is grid map that each village was allocated one type of soil species. Soil attribute database and spatial database is connected by the key fields of"village, soil species and the corresponding number". This research probably can offer service for soil resource management and decision of Laixi City and provide some references for the soil database establishment of other counties.