Based on the key demands of interaction and information sharing among multiple aircrafts for cooperative combat,we proposed a task oriented device-level avionics network architecture,which could reflect the essence of coordination.Firstly,we improved the auction task assignment algorithm and analyzed the wireless communication among aircrafts and among airborne equipments.Then,the communication costs among aircrafts were converted into that among the airborne devices.According to the function of communication costs,a method was presented for aircraft avionics network quality evaluation.The simulation indicates the conciseness of architecture.It can not only reflect the coordination essence,but also properly evaluate the quality of the network.