The paper discuss particularly international actuality from movement track,simulation precision,construct periods and economy character aspects to space manipulators. Three-dimensional microgravity simulation is emphasized in view of three-dimensional movement character. Scissor style gas suspension microgravity simulation equipment is put forward. The scheme integrates advantage of gas suspension, has flex big ratio and structure close，level has been solved by the use of the advantages of air flotation with dynamic, integrated force feedback servo control system can solve the problem of vertical direction with the move. The novel system can simulate the spatial microgravity environment with complex movement for space manipulators.