A new storage measurement system based on the CPLD(complex programmable logic device) and FLASH MEMORY(large-capacity flash memory)is designed. The maximum sampling frequency of the system is 1 MHz，but the system can flexibly choose the variable sampling frequencies，such as 500 kHz and 250 kHz，and also has the functions of external and internal trigger. The results show that the system can effectively store the A/D data acquisition.