Development and advisement of the earthquake electromagnetic satellite

A lot of examples indicate that there is interrelation between earthquake and ionosphere, which is the theoretic element for development of earthquake electromagmetic satellite. In this paper, development and trend of earthquake electromagmetic satellite of some countries are analyzed and some proposals for research on it at present are put forward. As conclusion, it may be necessity to build an integrative constellation composed of electromagmetic, InSar, gravity, IR and other satellite to realize earthquake prediction.