In order to meet the requirements of static and dynamic performance test of a two-way brake pressure servo-valve for a large transport aircraft,a test system with flexible load was developed to realize real-time test of double channel brake pressure servo valve.The research was carried out from the perspectives of integrated oil circuit design,adjustable cavity simulation load design and dual channel real-time test.The test results and the long-term operation results of the equipment show that the developed test system and equipment meet the requirements of practical test function and test accuracy,and work stably and reliably.