The payload range of the multi degree of freedom platform for precision positioning test is 0.1t-100t, and the position accuracy reaches 0.02mm. It is widely used in various vehicle attitude test equipment, flight attitude test equipment of aircraft / missiles, docking of space spacecraft and refueling docking of air tankers. At the same time, the multi degree of freedom precision positioning mechanism can be used to make high stiffness and high-precision multi degree of freedom machining machinery and assembly manipulator (such as six axis parallel machine tool and parallel robot), which are widely used in various complex special machining and complex assembly (such as aircraft assembly and satellite assembly).