In order to further improve the firing range, power and strike accuracy of the 155 mm gun, a miniature multi-channel bottom data acquisition module was designed. Taking field programmabk gate array (FPGA) as the design platform, use its embedded XADC hard core, design 8-channel analog signal acquisition and conversion, data buffering and digital anti-interference, measure the multi-point transient temperature and pressure data at the bottom of the gun during the launching process, and carry out the simulation analysis by Vivado platform. The simulation results show that the functional parameters of the module meet the design requirements, the operation is stable, and it has a certain engineering application value, which can provide reference for the optimal design of the storage equipment of bomb bottom.