By taking multi-target assignment in air combat of multiple fighters as a representative application of task synthesis technology,a scheme for solving the multi-target assignment problem was proposed based on task synthesis technology.Firstly,traditional method was used for constructing superiority function of our side,threat function of target,and WSEIAC effectiveness assessment model.Assessment to the combat situation and threat was achieved.Then,the target assignment algorithm with the principle of “attacking the inferior one by the one with superiority” was used together with the task planning assessment and task executing management,and a target assignment scheme was obtained.Finally,the target assignment algorithm and the scheme were simulated by using Bayesian network and task synthesis software.The simulation results verify that the scheme of multi-target assignment is effective.