Considering the scenario of air combat in which our two fighters detect and track one fighter coordinately we studied the decision-making of fighter maneuvering and radar activity during the detecting and tracking process based on Receding Horizon Control(RHC).A model of radar detection was established at first.The dynamic characteristics of Radar Cross Section(RCS)and the situation of dual-fighter detecting were studied.The model of dual-aircraft coordinated detecting and tracking was also built up.The function of coordinated detecting and tracking and the decision-making model of particle swarm optimization(PSO) were discussed.Simulation results show that the method can improve the capability of coordinated detecting and tracking effectively.