Abstract. In view of the problem that the increasing complexity and storage capacity about current flight parameters, proposed a design program of analog data acquisition and storage system about airborne flight data recorder based on STM32. Adopting STM32F103ZET6 as the master controller to c analog and store it to the SD card in a certain frame format. USB data uninstall interface is used to communication with the host PC, so as to uninstall and analysis the data in the SD card. Experiments show that the system has improved the way of flight data acquisition, storage and uninstalling, and it also has the advantages of high reading and writing speed, plugging convenient, low-power consumption and high reliability. It has a strong theoretical and practical value.