It is difficult for the jammer to generate a false target with a high degree of threat to interfere the radar.In order to improve the sheltering effect of false targets on real targets, a method for promoting the threat level of false target based on Digital Radio Frequency Memory (DRFM) is presented.According to the operating principle of DRFM, three kinds of interference models combined with power reverse forwarding deception jamming are summed up. By adjusting the parameters of the interference model, all aspects of the false targets are improved. According to simulation calculation result of the interference implementation process, this method can form continuous and stable false tracks, and the threat level of false targets is higher than that of the real targets. Therefore, the validity of the method is proved.