P-L band digital T/R module is implemented in the paper. The direct generation and sampling of any waveform signal in the DC-2000 MHz range are completed. Through the design of JESD204B protocol and synchronous clock driver, the transceiver synchronization between multiple digital channels is realized. Finally, real-time control of waveform, frequency, phase and other parameters of multi-digital transceiver channel is realized by upper computer software.