Abstract: A data acquisition and analysis system of airborne echo proposed playback of the trigger is designed,the realization by hardware design and data mining system algorithm is obtained,it improves the trigger data real-time acquisition and playback performance of airborne echo,VXI bus data acquisition system based on application layer software structure is proposed,instrument drivers is designed,acquisition channel group,data transmission mode,the data port settings and data reading module etc.are obtained.Airborne echo triggered data is obtained to improve the implementation of mining algorithm,and data playback system of PXI bus is designed.The experimental results show that the system has good airborne multi echo trigger data mining performance,data mining accuracy is improved,it has friendly interface,data acquisition and real-time analysis ability is better.