Abstract: In order to obtain ocean acoustic data and underwater target echo data to better study and improve dipping sonar system,a practical and high integrated data record system using high speed digital signal processing chip TMS320VC5509A and mass capacity flash memory chip is developed. Aimed at enhancing system integration and increasing system stability,the design and implement method is illustrated in system structure, hardware design, memory structure, software design etc. The practical applications have verified that the system is concise in structure, rational in design, convenient to use, and has good expansibility.