Abstract：A wide range of practical use of outer space information support in the military has become a direct impetus for the birth of joint operations and has played a crucial role in the war. In information warfare, combat forces in land, sea and air that carry out joint operations have been increasingly relying on the information safeguarding provided by outer space information support. Outer space information support is the core element that information warfare upgrades the system operations, which promotes the organic integration of a variety of combat forces, combat units and combat elements and form system operational capability based information systems. Outer space information support plays a crucial role in seizing the power of control information and fully demonstrate security effectiveness of system operation based information systems. Outer space information support stirs up a new trend of wide, complex, transparent, direct in the system operation, and its performance and effects becomes a power’s multiplier in the interaction of powers’ security. Development of outer space information support capabilities has led to a transfer of international political power towards outer space, which underscores the importance of outer space governance issue. Balance of power in outer space determines the prospect of outer space coordination and cooperation.
