Abstract:In flight test engineering, the flight test instruments system implements data acquisition, packaging and output. In order to achieve data communication between PCM data demodulation and computer, realize the real-time status monitoring, data post-analysis and processing, a FCS-FTI system status monitoring and data analysis system is designed and implemented based on.NET framework. The system functions include data capturing, real-time condition monitoring, data post-processing module. The testing results show that the system each function module running stability, and can realize the real-time status monitoring, data post-analysis and processing with efficient real-time and good reliability.