In order to collect the data generated by the aerocraft during the wind tunnel test in real time and control the test flow, a scheme based on Windows 7+RTX64 is proposed to design and develop the software system.Firstly, a flow for testing the real-time performance of RTX64 is designed and the test result is compared with that of Windows under the same conditions, verifying that RTX64 can significantly enhance the real-time performance of the system.Secondly, the design of Inter-Process Communication (IPC) and test flow of the software system for aerocrafts virtual flight is described in detail, and inter-process data interaction and synchronization is realized by using the shared memory and the event.Finally, the test results and analysis are given.The results show that the sensor data from the gyroscope, the encoder and the balance can be collected in real time and the time sequence of the virtual flight test of the aerocraft can be controlled correctly during the 4 ms period, proving the feasibility of the design.