To select a more rational four-point source decoy deployment scheme, the comprehensive decoy effects of three four-point source decoy deployment schemes on anti-radiation missiles with different performance parameters were simulated and analyzed. Based on the principle of active decoying, a mathematical model of active decoying was established, and the real-time tracking direction of the anti-radiation missile during multi-point source decoying was determined. Considering the limitation of the maximum overload of the anti-radiation missile, a motion model of the anti-radiation missile was established based on the time difference method. With the performance parameters of the anti-radiation missile fixed, the decoy effects of the forward triangular, square and rhombic deployment schemes were analyzed through simulation, and the decoy effects under different deployment distances were also analyzed. On this basis, anti-radiation missiles with different performance parameters were used to test the decoy effects of the three deployment schemes. Simulation experiments show that among the three deployment schemes, the forward triangular deployment scheme has the best comprehensive decoy effect.