Abstract: Aiming at the practical problems of the current emergency surveying and mapping site survey, this paper analyzes the task requirements of the emergency surveying and mapping site survey, puts forward the design scheme of the national emergency surveying and mapping site survey system, expounds the technical design idea on overall function, workflow, system interface, summarizes the main achievements and technologies of the system. Indicators form a one-stop, integrated technical equipment for emergency mapping site survey, which integrates data acquisition, data processing, result transmission, on-site mapping output, on-site geographic information service, remote video consultation, on-site life support, and achieves national coverage of emergency mapping site survey through rational layout design.It is of great significance to enhance the technical capability of the frontier survey of emergency mapping in China and to build national emergency mapping support system.

Key words: emergency surveying and mapping, site survey, multifunctional shelter, satellite data transmission, emergency geographic information service