Abstract: At present, the updating method of housing digital map is mostly based on basic topographic mapping, remote sensing and on-field data gathering, etc., which results in several problems such as long updating period, high costs, heavy workload, low timeliness and difficulties in change discovery. A fast updating method of housing digital map is presented, based on business data in related business process of city change, especially, spatial data of housing mapping, to require high timeliness of housing digital map, and to achieve automatic association of housing spatial information and housing transaction business data. Compared with traditional updating methods of housing digital map, this method has the characteristic of low cost, high accuracy, high timeliness. Presently, it has been applied into the construction of Beijing housing-life-cycle management information platform, and efficiently realized the automatic updating of housing digital map.

Key words: housing geographic information system, housing digital map, spatial data processing, property table