Man-aircraft closed-loop characteristics is very important for the high precision flight mission. In order to check Man-aircraft closed-loop characteristics under the condition of shortage of flight test resources ,a visual target tracking system is developed to simulate the control process of high-procision tasks such as air-to-air refueling. Through the virtual target algorithm, the system can simulate air-to-air refueling task, including formation, pre docking, docking, oil transportation and separation. For the virtual air-to-air refueling task function of the system, a new flight test technology is studied, including the flight test method design and the index quantification of man-aircraft closed-loop characteristics evaluation criteria. The target tracking mission system has been successfully applied to a certain aircraft, and successfully demonstrated by using new flight test technology. The flight test results show that the system can realistically simulate the air-to-air refueling task. On the one hand, it can effectively check the man- aircraft closed-loop characteristics, on the other hand, it can effectively train pilots to improve their flying skills of accurate tracking tasks, which has achieved positive effect of optimizing the flight test method, reduicing the risks and saving the costs. The accumulated practical experience is worth popularizing in other types of aircraft.