Based on the distributed gap and longitudinallycoupled fivetransducer structure, adding into the resonator element and optimizing the design, a SAW filter with center frequency of 232 MHz and 3 dB bandwidth of 23.2 MHz has been developed by using 41°〖WTBX〗YX〖WTBZ〗 LiNbO3 piezoelectric material as the substrate. The product has the features of insertion loss of -1.9 dB, relative bandwidth of 10%, and shape factor of about 2.2 and stopband rejection of 50 dB. The comprehensive performance specification of the product is excellent and has good practicability.