A communication strategy is presented for the two tops structure of cellular robotic system (CEBOT) communication networks. The two tops structure means that the network has two master cells. A network is separated into two subnetworks, each of which has one master cell. The efficiency of information flow will be improved and the load for a master cell in each subnetwork will be reduced by appropriately selecting the master cell. The two master cells of the system are determined by minimizing the network energy, which is defined based on the information flow in the network. The local energy sensitive estimation method is used for the selection of two master cells. The simulation results illustrate the mastering of the two tops structure.