Generally,the algorithm implementation of the acoustic spectrum signal of hydroacoustic support interference system is completed by signal processors,with the signal generation module realizing digital-to-analog conversion of the digital signals. This paper introduces a generation module of simulated submarine noise signal based on FPGA,which realizes the acoustic spectrum signal generation algorithm and simplifies the system composition. The paper mainly introduces the working principle,hardware and software design and test results of the module,which can provide technical reference for related applications,and can also be extended to other fields related to signal generation.