A novel high voltage pulse bulk acoustic wave delay line has been developed through optimizing the transducer and delay medium. Compared with the conventional acoustic wave delay line, the designed delay line has high pulse voltage withstand property which is up to 2 kV. At the same time, the insert loss of the delay line is low and the output power is high (transient power up to 2 W) which can act as passive power MOS tube driver without additional energy supply. The experimental results indicate that the delay line has high delay stability in the case of large current discharge interference.