This paper discussed the developing trend of the foreign land observation data processing center and the problems of our country land observation data management. The developing trend of the foreign land observation data processing center are: building up the concentrative data processing center and providing comprehensive service;building up the data sharing mechanism, improving the data sharing and servicing;reforming and integrating data resources. In order to improve the land observation data sharing and applications, it is necessary to build up the national land observation data center. The construction of the national land observation data center includes the facility of comprehensive data processing, archiving, distributing and service and so on. The national land observation data center will improve the land observation data sharing and application; satisfy the requirement of land observation data.