This　paper　designs　a　Signal　Source　Board　based　on　PXIe　standard.　The　Signal　Source　Board　adopts　XCKU060-2FFVA1157I　of　Xilinx　company　as　the　main　control　chip　of　the　FPGA,　AD9144　of　ADI　company　as　the　DAC,　the　Host　Computer　sends　the　analog　signal　waveform　code　table　to　be　generated　to　the　Signal　Source　Board　through　the　PCIe　Bus,　and　then　the　FPGA　of　the　Source　Board　based　sends　the　analog　signal　waveform　code　table　to　two　pieces　of　AD9144　through　the　JESD204B　interface.　Finally,　the　generated　analog　signal　is　filtered　through　the　low-pass　filter　HMC1023,　and　completes　the　output　of　8-channel　analog　signal.　It　achieves　the　high-quality　generation　of　any　modulated　signal　from　baseband　to　mid-frequency,　and　meets　the　synchronous　output　requirements　of　8-channel　analog　signal.　©　2022　ACM.