Abstract: RS information has the advantages of periodic and dynamic character, abundant information, high efficiency of acquirement and so forth. GIS has the ability of efficient management of spatial data and agile compositive analysis of spatial data. But both of them have some limitation. As development of GIS technique and RS technique, the people urgently hope combine RS’powerful function of image processing with GIS’powerful function of spatial analysis to solve increasingly complicated environment problems. Therefore, the system integration of GIS and RS has become hot problems. This paper synthetically analyzes the system integration actuality of GIS and RS, discusses technical methods of the system integration of GIS and RS, the key problems and quomodo. As the progress of observation technique on land, to RS as the core, combining with the system integration of GIS has become mostly trend of current development.

Key words: GIS, RS, system integration