Flutter flight test is highly risky, and it is a complex experiment with multidisciplinary crossover. Its real－time monitoring and analysis is extremely important. Based on the domestic civil aircraft flutter test, this paper designs and develops a real－time monitoring and analysis system using the Measurement Studio platform. The system integrates algorithms such as half－bandwidth method, fast Fourier transform and wavelet transform to realize time－frequency domain analysis and damping calculation of flutter data.In addition, the system records flutter data in real－time with text format. At the same time, the system completes the real－time display of the analysis results with multi－threading and DataBinding model, which can provide technical support for the safe flight test of domestic civil aircraft.