Airplane iron bird hydraulic testbed is an important device of aircraft ground test, the accuracy of the testing system directly affects the safety of the whole flight process and landing process of aircraft. But it has many test loops, the equipments are scattered, test process is difficult to control. According to these, the literature about iron bird test aircraft hydraulic system solutions at home and abroad were reviewed, their advantages and disadvantages were analyzed. Combining with a certain type of measurement system for unmanned airplane iron bird hydraulic testbed requirements, the suitable scheme were chosen, and the future trend of the test system was discussed.