介绍了我国对地观测体系已经开展的工作；提出了改进遥感数据质量是基础，扩大数据共享是关键， 开展典型应用为国民经济服务是目的的发展战略。

Drawing on the experience of land observation cause in developed countries, the thesis has depicted the work done in China´s land observation system. Furthermore, it puts forward such concerns that improving the quality of remote sensing data is the foundation, enlarging the data sharing is the key, and carrying out typical applications to serve national economy is the aim. By doing so the smooth developments of national land observation system can be achieved.