The 1-3-2 piezocomposite material was designed and fabricated in this paper.The 1-3-2 piezocomposite material had the advantages of low acoustic impedance，low quality factor(Q),high electromechanical coupling factor,easy way of making electrode and steady structure.The broadband underwater transducer based on 1-3-2 piezocomposite material was fabricated,and the electroacoustic performances were analyzed and measured.It was shown experimentally and theoretically that this type of transducer had the characteristics of pure mode,high transmitting voltage response and broad band in the working frequency range.