The present invention discloses a test device of satellite-borne flywheel disturbance vibration force test in a vacuum environment. The device comprises a plurality of air vibration isolators, a marble mass block, a support device, force sensors, a production installation table board, a vacuum tank and the like. The air vibration isolators are configured to support the marble mass block, the top portion of the marble mass block is configured to support the vacuum tan and is provided with the vacuum tan, the internal portion of the vacuum tan has a certain vacuum degree, the force sensors are arranged at the bottom portion of the internal portion of the vacuum tank, the force sensors are configured to test micro disturbance generated by a satellite-borne flywheel disturbance source above the installation table board, the disturbance vibration generated when the satellite-borne flywheel disturbance source works is transmitted to the force sensors through an installation board and then istransmitted to a signal processor connected with the force sensors, and a data collector performs signal collection. The device provided by the invention performs test of the flywheel output disturbance vibration force, a test result is more accurate and is close to the actual work state of the flywheel, and the data more has the guiding.