In the area not covered by general communication or in case that general communication is unavailable due to artificial destruction or natural disaster, the BeiDou emergency communication system can quickly set up a command and communication network based on the BeiDou satellite communication link, to achieve autonomous navigation and location monitoring by combining with the BeiDou System’s positioning function. The system consists of BeiDou command receiver, BeiDou vehicle mounted receiver, BeiDou handset and monitoring software, which can perform location monitoring, broadcast communication and command and dispatch for subordinate users (people, cars or ships), taking the advantages of satellite navigation, positioning and short-message communication. When combined with map service, it can achieve the functions of route planning, off-course early warning, and playback of track record for subordinate users.