Aiming at the deficiencies of traditional emergency monitoring systems in emergency decision-making, resource support, and process informatization during aircraft development and flight testing, a flight testing emergency monitoring system was researched and designed. The system adopts a microservice architecture and hierarchical design, including data acquisition and transmission, infrastructure, platform services, application services, and presentation layers, integrating multi-source heterogeneous data such as ADS-B data, telemetry data, and audio-video streams. Core functional modules include data maintenance and management, dynamic information display, and audio-video scheduling, supporting multi-mode data entry, multi-source video switching, and efficient voice communication. Technically, the frontend uses Vue3 and Electron frameworks, the backend implements microservice management based on Spring Cloud Alibaba, and optimizes performance by combining Redis caching with a hybrid database of MySQL, InfluxDB, and MinIO. Tests show that the system successfully supports cross-regional collaborative emergency drills, achieves multi-source data fusion and microservice elastic scaling, with real-time data update delay of 175ms, providing a global monitoring platform for flight test emergency management. Practical applications demonstrate that the system enhances flight test safety and emergency response efficiency, and its architecture and technical solutions have promotion value for emergency monitoring in high-risk fields.