Satellites play an irreplaceable role in human daily life, more and more satellites are being sent into space. At the same time, foreign space powers are competing to develop the satellite stealth technology, the safety factors and survival ability of the satellite can't be ignored. Analysis of space surveillance system for high orbit satellite has a strong optical detection capability; optical visibility of spatial objects; and the optical brightness of the typical satellite body. Finally, it is pointed out that the development of satellite optical stealth technology is imperative.