Abstract: This paper introduces the design and implementation of MCU (Multipoint Control Unit) high-definition video conferencing system in emergency command center of Beijing Earthquake Agency, analyses the advantages of MCU in earthquake emergency video conferencing system, and expounds the application of different groups of MCU in earthquake emergency command and daily meetings. It shows that the construction of MCU can improve the coordination ability of emergency response. It plays an important role in meeting the needs of daily meetings. In the future, cloud video, MCU resource pool and other technologies will be more conducive to the rational use of resources.