With the rapid development of information technology, a variety of data acquisition and processing in the modern industrial control and scientific research have become an indispensable part. The data acquisition system is a bridge between the smart instruments and the outside physical world, and it is also an important way to get information. The implementation of high-speed data acquisition and real-time transmission has always been an important technical direction in data acquisition system. The development of FPGA technology has provided new solution. The typical architecture of data acquisition system mainly consists of front high-speed A/D converter module, master controller of FPGA and high-speed D/A converter module. According to the idea of design and the procedure of program, software part has been completed. The results show that the system has the characteristics of fast acquisition speed, high storage capacity, small transmission delay, high stability and so on.