Abstract: Through analysis and study on the realization of three-dimensional movement in space environment, this paper discusses issues in the design of three-dimensional movement simulator, with movement functions including spinning, pitching, yawing and three-dimensional movement composition, in terms of the technique index, functions, lectotype determination and calculation, the system components, the characteristics of main body structure and driving system of the simulators, and analyzes some important technical issues in the development process of the simulator.