Abstract: To get the best jamming effect by using limited radar jamming resources,an objective function for allocating radar jamming resources is built,which is based on the calculation by the probability formula of jammer pressing.Firstly,a simulated annealing algorithm is used to give priority to distributing the radar at higher threat level,and the jamming resources with bigger jammer pressing probability are optimally allocated.And then,the same algorithm is applied in the rest jamming resources in order to find out the global optimal solution for allocating radar jamming resources from feasible solution space,which satisfies the objective function and constraint conditions.The simulated results indicate that this method is not only feasible and efficient,but also suitable to the situation of "single jammer to single radar" and "multi-jammer to single-radar",and it has some guided significance for devising and developing the intelligent radar jamming decision supporting system.