The flight control of the formation of multiple Unmanned Aerial Vehicles (UAVs) based on wireless network communication is easily affected by such factors as communication interruption and information collision.Based on a Token-Ring algorithm of distributed network, a method to switch communication topologies is proposed, and a concept of leader switching is introduced.The distributed control law is designed based on the consensus theory and the local relative state information, which is made up of two parts:tracking of the desired trajectory of formation and maintaining of the formation geometry.A double-integrator dynamics system model is used for simulation.The results show that:1) The proposed method can make the formation implement the desired trajectory tracking and maintain formation geometry in flight;and 2) The designed control system has strong robustness, which can keep the preset formation geometry even when some of the communication nodes fail.