The earthquake emergency command technology system provides critical support for earthquake emergency operations. Strengthening risk awareness and proactively identifying and mitigating potential risks are essential for preventing and managing hazards, as well as for ensuring the system's safety, stability, sustainability and reliable operation. The system is of key responsibilities, including earthquake emergency response and routine video conferencing support. Given its broad functional scope, the system is inevitably exposed to various threat factors and associated security vulnerabilities. Taking Beijing as a case study, this paper conducts a risk assessment and investigates disaster recovery and backup strategies for the earthquake emergency command technology system. Through a comprehensive and systematic review of the system, the fuzzy comprehensive evaluation method is applied to assess the risk levels of all system modules. The results indicate that among the 54 modules, 7 are classified as high risk, 27 as medium risk, and 20 as low risk, accounting for 12.96%, 50.00%, and 37.04%, respectively. Corresponding disaster recovery and backup strategies are proposed for modules at different risk levels. The findings contribute to the establishment of a risk prevention framework for earthquake emergency command technology systems and have practical significance for enhancing the reliability and effectiveness of earthquake emergency service support.