The invention relates to a two-channel digital radio-frequency memory board, and belongs to the technical field of data memory. The two-channel digital radio-frequency memory board comprises a power module, an ADC data acquisition module, a DAC data playback module, a DDR2 memory module, an FPGA acquisition control module, an FPGA playback control module, a DSP communication control module, an analog signal input interface module, an analog signal output interface module, a PCI interface module, a Rapid IO interface module and a customized bus interface module. The two-channel digital radio-frequency memory board is provided with two signal acquisition processing playback circuit branches, and each circuit branch has the sampling rate of 1.2GSPS and the playback rate of 1.2GSPS; and the two-channel digital radio-frequency memory board has various signal acquisition processing playback modes and data transmission mode, can realize functions of memorizing and forwarding signals with high frequency, and is suitable to be applied to the field of radar and electronic warfare confrontation.