In order to obtain the kinematics parameters of the certain type aircraft gun feeding system, a motion perception system based on field programmable gate array (FPGA) and FLASH is designed. FPGA is used as the main control chip to control the multi-channel A/D acquisition module to realize the real-time data acquisition of the three-axis acceleration sensor, and the acquired data is written into the FLASH storage unit; after the experiment, the acquisition system is recovered, and the data in FLASH is read back by the host computer software, and then the acquisition system calibration experiment is carried out to verify that the system error is less than 3%. The firing test results show that the system can completely record the motion parameters of the aircraft gun and meet the requirements of reliability and integrity.