Abstract: To cooperate different satellites in the complexity multi-satellite systems,this paper introduces the idea of self-assembly which is one of the basic mechanisms in the supramolecular chemistry.The multi-satellite system is modeled by a half-edge graph model and its assembly growing method is proposed to automatically assemble resources for some mission.Finally,the simulation results of the resource assignment for the spaceflight mission by the proposed method show that the self-assembly method shed some light on the cooperation of multi-satellites.