The flight test data is characterized by multiple types, large data volume and complex algorithms, thus data processing is a key link in flight test.The flight test data processing system needs to have capabilities such as rapid analysis of test data and timely sharing of cross-regional data.Here, on the basis of analyzing current flight test data processing system, we propose new approaches such as data processing center & diversity points, sharing between diversity points, horizontal flight data splitting, and separated processing, then design a new flight test data processing system based on edge cloud collaboration, which realizes functions of data processing, cross-regional data sharing, and performance deduction & analysis for the whole-process subject implementation.