Abstract:Helicopter rotor system load and strength flight test is the real atmosphere environment of the rotor system stress load spectrum of the study, it provides real data can not be provided by the theoretical calculation, so the rotor system load test flight is the helicopter design stereotypes test flight is extremely important project. According to the requirements of helicopter rotor system load test technology, the dynamic load data modulation, transmission and demodulation are realized by multi-channel wireless transmission design using modularity, redundancy and high integration design. Data Acquisition and Monitoring of Rotor System Load with High Bandwidth and Accurate Synchronization. This technique has some reference significance for the similar problems encountered in the helicopter rotor system load test flight.