The state of the projectile during flight can be used as one of the effective methods to evaluate its operational performance. In allusion to the data acquisition requirements of projectiles in the air, a missile-based multi-channel data acquisition and storage system was designed, in which the system hardware framework is approved. The demonstrated system uses Zynq-7000 series Soc chipas the logic control. The programmable A/D conversion chip AD7606 and large-capacity Nand-flash memory are used to collect and store data. At the software design level, A/D conversion, DMA transmission and data storage are combined to ensure efficient data collection, transmission and storage. Finally, in the turntable and flight experiments, the designed system collects geomagnetic data from the HMC1052 geomagnetic sensor to verify the reliability and correctness of the system operation.