Emergency communication system can provide timely and effective emergency communication support services for government departments under various emergency situations, such as geological disasters, meteorological disasters, forest fire, emergent safety incidents and other emergencies. The services include data, video, voice and other communications transmission service. The system is mainly composed of a communication Hub station and various terminal stations. The system supports flexible networking of various types of terminal stations, including vehicle-mounted, shipborne, airborne, fixed and portable, suitable for different environments such as ground, aviation and ocean.