In this paper it is proposed that space electronics covers the fields of radio electronic technics for the tracking and control of the artificial satillites and spacecrafts

for the observation of the earth by satellites

for the exploration of deep space

for satellite communications and broadcasting

and for the uti-lization of satellites for position fixing of moving objects. Some outstanding achievements of space electronic systems are cited in this paper

and the features special to space-electronics are stated and analysed. The development of space-electronics in our country is briefly described. Finally the future prospects of space electronics are concisely discussed.