The general survey of geographical national conditions is an important survey of national conditions and national strength, an important means to obtain information on geographical national conditions in an all-round way, and a basic work to grasp the basic situation of surface nature, ecology and human activities. National Geographic Survey is to use modern spatial information and mapping technologies such as global navigation satellite positioning, space remote sensing, geographic information system, etc., to integrate basic surveying and mapping results and thematic data of various departments, to spatially and quantitatively investigate the natural and human geographic information on the land surface of China, and to form a national geographic survey report.