The high demand of data acquisition system was proposed to realize the real-time monitoring of wind fields in the multi-beam displacement measurement of wind field system.In this paper,the FPGA chips was well designed to achieve cache and transmission control of high-speed data to meet the actual demand,including PLL clock management module,the preceding stage of FIFO buffer module,the rear stage of dual-port RAM memory modules and the reading and writing control module of FIFO and RAM.It not only fulfilled caching and asynchronous data reading,but also greatly simplified the interface circuit structures of A/D chip and the design of printed circuit board.Synthesis and simulation of all modules was carried out using the program Quartus Ⅱ 6.1.The result presented perfect satisfaction to the design requirements.The wind field was successfully measured by the displacement measuring system,which presented the high-speed data acquisition and processing system could effectively detect the echo signal in different distance.Therefore,we can calculate the wind speed and get the wind direction according to the detected signals.