An artificial satellite system includes at least two panel type artificial satellites closely connected with a plurality kind of multi networks and the minimum necessary essential tools for one artificial satellite installed on a substrate of each panel type artificial satellite, wherein the multi networks are formed by a communicating network for communicating data among data processing tools installed on each of the panel type artificial satellites, a heat pipe for providing thermal energy among tools installed on each of the panel type artificial satellites and a battery supplying line for connecting battery controlling devices installed in the each panel type artificial satellite so that the artificial satellite system can maintain higher and various controlling performance with a back-up effect of the multi network in the case that any function tool is damaged in one of the panel type artificial satellite.