Phase coding is a typical pulse modulation form of pulse compression radar,and the jamming of phase coded pulse compression radar is a research hotspot in the field of electronic warfare.In view of the shortcomings of traditional noise jamming against phase coded pulse compression radar,a multi-phase refactoring jamming modulation technology is proposed in confrontation of phase coded pulse compression radar.The radar signal samples obtained from reconnaissance are divided into several segments,which are reconstructed to generate coherent jamming signals.The jamming signals can obtain coherent processing gain of radar signals and the jamming power utilization rate is high.The simulation results show that this technology can modulate the jamming signals according to radar working modes,and generate the expected jamming signal waveform with good jamming effects.