地球空间信息科学技术是大有作为的科技领域之一。空间遥感、地理信息系统、卫星定位及其与通信、网络技术的集成正以地球系统作为研究对象，为人们研究地球，特别是人与自然的和谐、人口资源环境的协调和社会的可持续发展提供了前所未有的手段，开拓了崭新的途径。在对国际空间遥感信息技术和空间信息的特点和发展趋势进行科学判断的基础上，分析了对地观测与人文因素的关系，提出了建立国家对地观测系统，发展空间信息技术的战略设想。

Geo-spatial information science and technology is one of the most emerging fields of the progress of science and technology. With the Earth System as an important target, the development and integration of Remote Sensing, Geographical Information System, Satellite positioning and computernetwork are providing an unique means for studying our Earth, especially for studying the harmony of between human and nature, the coordination among population, resources and environment as well as societal sustainable development. Based on the analysis of the development of spatial remote sensing information technology, the features of spatial information and its development, the relation between the earth observation and the human impact was analysed and also the strategic consideration of development of earth observing system as well as geospatial information technology in China was proposed.