An artificial satellite system 200 comprises at least two panel type artificial satellites 100 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 satellites 100, wherein the multi networks are formed by a communicating network for communicating data among data processing tools installed on each the panel type artificial satellites 100, a heat pipe for providing thermal energy among tools installed on each the panel type artificial satellites 100 and a battery supplying line for connecting battery controlling devices installed in the each panel type artificial satellite so that the artificial satellite system 200 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 100.