Provided is a capacitive transducer drive device capable of adjusting a potential difference applied between electrodes of a cell with a simple configuration. A capacitive transducer to be driven by the drive device includes a cell including: a first electrode (102) included in a vibrating membrane (101) and a second electrode (103) formed to oppose the first electrode through intermediation of a gap (105). One of the first electrode (102) and the second electrode (103) of the cell is electrically connected to a first DC voltage applying unit (201), and the other of the first electrode (102) and the second electrode (103) of the cell is electrically connected to a second DC voltage applying unit (203). A voltage to be applied by the second DC voltage applying unit is set to be lower than a voltage to be applied by the first DC voltage applying unit. The voltage to be applied by the second DC voltage applying unit (203) is variable.
