Abstract: In this paper, the problem of designing waveform of phase coded pulse compression radar with interpulse code agility is studied. A new performance criterion is proposed which is the best trade-off among the four waveform parameters, i.e., autocorrelation sidelobe energy (ACSE), cross correlation energy (CCE), autocorrelation sidelobe peak (ACSP) and cross correlation peak value (CCPV) of waveforms.An algorithm is presented for obtaining an optimal code set. The computational resulst for size of code sets K=6 and K = 32 are given.