Through optimizing high frequency and low loss transducer design, extra thin piezoelectric film deposition, microwave matching network, and EMC of high frequency hermetic seal package，a microwave bulk acoustic wave delay line operated at 16 17 GHz has been developed in this work. The bandwidth of 1 098 MHz，delay time of 0.358 μs，insertion loss of -54 dB，triple transmitting suppression(TTS) of 28 dB，feed through suppression of 44 dB have been achieved.