Abstract: To address the problems of high autocorrelation sidelobe level and high false symbol rate in the probe-through integrated waveform design method applying phase modulation to linear frequency modulation (LFM), this paper proposes a joint orthogonal waveform selection and pulse repetition interval (PRI) shortcut double index modulation method. Firstly, the orthogonal waveform sets with good autocorrelation and cross-correlation performance are realized by attaching perturbation phases to the LFM waveforms. Second, the modulation and demodulation methods for communication messages are given in detail. Finally, the results show that the designed integrated waveforms not only meet the radar detection performance but also have good autocorrelation properties, in addition to low false symbol rate under low signal-to-noise ratio conditions.