The utility model discloses a many rotor crafts stability testing system, including the structure frame, the bottom of structure frame is provided with the lithium cell, the centre of structure frame is provided with main control chip, bluetooth transmission module, wireless wiFi transport module, the top of structure frame is provided with the fixed motor of a plurality of and presss from both sides, the bottom that fixed motor pressed from both sides is provided with force transducer A, force transducer B, force transducer C, force transducer D respectively, force transducer A's output force transducer B's output force transducer C's output force transducer D's output the lithium cell respectively with main control chip's input is connected, the lithium cell with still be provided with the switch between the main control chip, the outside of structure frame is inlayed respectively and is equipped with high definition touch display screen, physics button, emitting diode, bee calling organ alarm module. The utility model discloses can adjust, revise and evaluate the attitude stabilization nature of aircraft.