Abstract: Behavior parameter test of active jammer is the premise and foundation of radar anti-jamming technology, and has important research value. For the jammer behavioral level parameter testing problem of digital radio frequency memory (DRFM), a behavior parameter test scheme for DRFM jammer based on sequential waveform is proposed in this paper. The scheme realizes the analysis and estimation of jammer channelization, frequency targeting, forwarding, sorting and strategy mode capability, which provides a new idea for effectively countering DRFM jammer. At the same time, the jamming ability recognition algorithm based on analytic hierarchy process (AHP) and technique for order preference by similarity to ideal solution (TOPSIS) is proposed. The simulation results show that the recognition accuracy of this scheme is more than 90%?? when the interference to noise ratio is 2 dB.